Rating: 
Summary: Best Mouse I've Ever Used
Review: About a month ago I decided I needed a new mouse. At the time i was using a standard optical 2 button, scroll wheel, compaq mouse. After reading many reviews about how great the Logitech MX700 mouse was i bought that... It was very smooth and precise, BUT it was the MOST UNCOFTORABLE mouse I've ever used and my whole arm was sore after a little while of use!!!! I returned it the next day and after reading some reviews tried this mouse, the Microsoft Intellimouse Explorer with Tilt Wheel... This is a great mouse and is very precise, but even more important it fits my hand perfect, very comftorable! It's great for games and the battery seems like it will have a long life. The side scrolling thingy isn't used much, but when I have used it it's very easy and useful. The front and back scroll wheel is smooth, its like one long scroll down, no stop at all, which is very hard to use in games, but now I've got it down perfectly just takes time. Just try this mouse out, you won't be dissapointed.
Rating: 
Summary: Steps forward, steps back
Review: As a long time user of the first version of the MS Wireless Intellimouse Explorer I was excited to get my new 2.0 version with tilt wheel horizonal scrolling. The new mouse looks nicer with soft rubber sides, runs on one AA in a pinch but with two has nearly 6 TIMES the battery life of my old mouse (up to 6 months now) and has smoother response on screen than the old version. There is also much less signal interference with all my other wireless equipment and the new horizontal scrolling action is easy to pick up and really "works."That said there are *several* steps backwards. The new mouse is about 10% smaller than the old Explorer and even though I have small hands for most men this new mouse doesn't fit like the "glove" that the old Explorer did. The top is too peaked to allow my hand's palm to rest in total comfort and the thumb rest slopes inward nicely but no longer flares at the bottom to hold my thumb in place. The new scroll wheel has a gel like feel with a smooth scrolling action with no "clicking." This feels so unnatural for current wheel mouse users and takes a long time to get used to. I control it well now to the point it doesn't bother me but I certainly don't think it is an improvement over a wheel that has a clicking feel. The two back and forward extra buttons for web browsing etc. are even smaller and higher now turning the old Explorer's weak spot into even a bigger weak spot. Finally the Intellimouse software no longer allows you to set buttons on the mouse to work different features in each individual softwear application, instead allowing only global changes. The horizontal tilt feature, colors, look, battery life, and response are all winners. It just begs the question why the ergonomics and softwear had to take a step back. If you are looking for a good wireless mouse this certainly is a winner, but if you already own the orginal wireless intellimouse explorer you might want to put your hand on one of these before you decide to "upgrade."
Rating:
Summary: Don't recommend
Review: Been using the corded 3.0 for 5 years and dissappointed in this one. Microsoft replaced my 3.0 with a 4.0. The f/b buttons were moved up higher so your thumb is constantly moving up & down. It is more narrow and doesn't support the cup in your hand. This has been painful for me since I use all day with a wrist pad never had that problem with the 3.0. I have to stop frequently to rub my palm and stretch my hand because it causes you to cup your hand more. I do have large hands for a woman and the 3.0 fit well. I would wait for another design, or try it out in the store first. This would be better than some 2 button mouse but not for a heavy user. 3 stars for the optical - 2 stars for the design.
Rating:
Summary: Best mouse I have ever used
Review: Comfortable stylish design. Very good response. Long battery life. Smooth scrolling wheel. My favourite is the scrolling speed depends on how fast the wheel is scrolled. Battery & Wireless connection statuses. Variety of colours to choose.
One comment as others said, the software does not allow you to set buttons on the mouse to work different features in each individual applications. Hopefully newer software will addressed the problem.
Rating: 
Summary: Comfortable and Functional
Review: Despite what many other reviewers have said, this is a pretty darn good mouse. It fits my hand well as it is shaped more ergonomically than the Logitech flagship, the MX700. It is rather bulky but fits medium to large hands relatively well. Smaller hands should look out for another mouse or at least go to a store to see how it feels first. A unique feature of this mouse is the new tilt and smooth scroll wheel. The tilt wheel is handy when going through large spreadsheets and helps on certain web pages where the margins are blown out. It does feel a bit flimsy to use but it's still functional and practical for some. The smooth scroll wheel is a big plus for users who scroll though hundreds of web pages and documents like I do. I do admit it is a bit more sensitive for my tastes and isn't very good for games but it still feels better to use for office and browsing work. I've heard of some people complaining about the difficulty in using the middle-click with the scroll wheel. I can confirm this problem does exist but if one clicks it using the entire fingertip rather than just the very end of your finger to click works. Wireless capability seems good. The receiver usually isn't more than two feet away from my mouse but I've used it a good 4-5 feet away with no problems. It comes with standard Energizer batteries, which are supposed to last 6 months. I have not been able to test this out since I've only had this mouse for a week but I have confidence they'll last me at least 3-5 months. I usually only do office work, web page browsing, and the occasional FPS game on my computer but the optical sensor is good enough for me. More hardcore gamers may want to look at the Logitech MX series since they claim to have a better sensor. I have not had the privilage of testing the MX series so I can't give any more information on that. Another gripe some may have, mostly gamers, is that the extra explorer buttons and scroll wheel cannot be programmed to represent a letter or a key command. Again, this is a non-issue with infrequent gamers and those who mainly do office work. Overall, this is a pretty nice mouse for those not willing to splurge on the Logitech MX700 and for those who do more office work than gaming. It's not as bad as many claim it to be. I'd recommend it with a few reservations for gamers.
Rating: 
Summary: Won't connect, Flimsy tilt, Short battery life
Review: Don't get this product! I returned one already. 1. Won't connect
Mouse didn't work out box. Had to return to get another one. What a hassle. I wonder how long this mouse will last. 2. Flimsy tilt
What a lousy and flimsy design... How often does one use side scroll anyway? In any case, to use it takes large amount of finger extension and force. Lousy gimmick at best. And I miss the scroll with "click" as smooth scroll doesn't feel "right". 3. 6 month battery life?
Now that's a LIE! The damn Intellipoint software keeps on reminding me after 2 months that I need to change the battery and I used it only at home. I wish I got the Logi with built-in charger. Finally, I wish I bought the Logi with 600 dpi and recharger instead. I tried one and regret this terrible unreliable piece of trash.
Rating:
Summary: Users of predecessor model may be disappointed with this.
Review: Even though this model (Intellimouse Explorer 2.0) brings a number of improvements, it is much less comfortable to hold than the original Intellimouse Explorer. Microsoft has unfortunately removed the thumb rest that made this model's predecessor such a pleasure to hold. They have also reduced the overall size, which I feel further reduces grip comfort. While the soft rubber sides on this model indeed feel better to the touch than the old model's plastic, they hardly make up for the missing thumb rest and smaller size. Apparently, Microsoft does currently produce a mouse which has the thumb rest - the wireless Bluetooth model (which costs a premium). However, according to the comparison charts released by Microsoft (currently available with just a few clicks at http://www.microsoft.com/hardware/mouseandkeyboard/), their "Most Advanced Model Ever" (the Bluetooth) lacks the "Long Battery Life" that the Intellimouse Explorer 2.0 touts. And after reading how often people have been claiming they need to change batteries in the original Intellimouse Explorer, purchasing a Microsoft made mouse that doesn't tout a "Long Battery Life" seems risky. So it seems that Microsoft's product line does not meet the demands of people who are looking for both the grip comfort of the original Intellimouse Explorer and the long battery life of the newer model - even if those people are willing to pay a little more for quality. Make sure to try this mouse before you buy it.
Rating:
Summary: Best mouse to date
Review: Hands down. This is the best mouse I've ever used. After returning my previous Wireless OpticalMouse because the buttons squeaked when you clicked, I picked up this mouse. It feels great. Most of what I didn't like in the previous optical mice has been corrected in this one. It's way more accurate (I do a lot of graphic drawing and the previous otpical mice wouldn't always figure out I was moving the mouse if I moved it to slowly). It's not too light and has a nice resistance when moving it across my desktop. The scroll wheel is now totally smooth. When you scroll a page, it does not do it one line at a time, but rather depends on how fast you scroll the wheel. A great improvement. It feels great in my hand too. I haven't really used the horizonatal scroll feature, so can't really comment on its value. Even if it did not have the horizontal scroll feature, I would recommend this mouse above any others I have used (and I have used a lot).
One word says it all for me. Smooth. Don't hesitate. Get it today.
Rating:
Summary: Tilt Wheel Needs Work
Review: I am a serious PC Gamer and an avid Web Surfer. That being said, I can only compare this mouse to the last few I've had. First of all, the new tilt wheel...
I love and highly promote *wheel* mice, but this new *tilt* wheel is awful. The ability to tilt/scroll left and right is something I haven't found myself needing anywhere as much as scrolling up and down, but it is a feature I don't mind on my mouse either way. However... THIS new Microsoft tilt wheel suffers from a major flaw. The wheel shifts up and down ON ITS OWN from time to time. Only a little bit, but enough to really tick me off- I'll go to click on something, and the wheel, with its weird 'rubberiness' will shift a little and move the page a smidge. It drives me insane. While surfing, it can be annoying. While playing a first-person shooter game, where it will randomly switch you to your next weapon, it can make your blood boil! I even exchanged it for a new one at the store, to see if I just had a defective one, but the replacement had the same problem. It looks like it needs more work. Optical-wise, it's decent. It is not my FIRST optical mouse, and I can't tell if it is better then my LAST Microsoft optical mouse. Wireless-wise, it is my first. I can really get used to the chord's absence, but I have the unshakeable impression that it isn't as reliable as I need it to be during my online frag-fests. Ergonomically, I haven't had a much more comfortable mouse. In short, if they fix the tilt wheel it would be a decent everyday mouse. But as a serious gamer, I intend to return it for a 4-button, non-tilting, optical, wheel mouse with a chord.
Rating:
Summary: Disappointed -- buying a wired one
Review: I bought this mouse a few months ago and have had annoying problems with it. You click on things and it doesn't always register -- so you don't know if you really clicked or not, end up double clicking, etc. Not having a wire is not enough of a benefit for this hassle. Also, having a wheel which doesn't "click" is bad if you use Access forms. The old, clicking style wheel takes you through subforms at one click per page -- this new one is arbitrary. Plus if you spin the wheel fast it can lock up, forcing you to sit there and watch while it scrolls and scrolls. I cannot recommend this product.
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