Rating: 
Summary: Best mouse so far
Review: This is the absolute best mouse that I have ever used. It is indistinguishable from a corded mouse. It is so effortless and accurate. It is definitely better than your other run-of-the-mill optic mice. I am overjoyed with it. Some may think it's overkill to pay this much for a mouse, but when you think about it, you use the mouse every single day. It is worth it, and the only negative thing I could say is that i wish it had the side-wheel scroll that the very newest Microsoft optical mice have. I would have also preferred a larger, more accentuated handgrip, but these are minor, minor quibbles. I'd give it a 4.75 star out of 5-star rating. Recommended without any hesitation. You will be pleased. Guaranteed. And if you aren't, seriously question whether you got a lemon. Exchange it for another one.
Rating: 
Summary: If it was just a little lighter and smaller...
Review: I wanted the Logitech MX700 since it came out, but $70-80 for a mouse seemed a bit overboard, especially since most places will not allow you to return open box items, or at the least will charge you a restocking fee. Amazon.com has it for $54 now, which I find to be much more attractive, if still a bit unreasonable for what it is. I got mine for $50 because I know someone that owns a computer store. I was hesitant to buy Logitech again because I owned a Logitech Cordless mouse before (not optical) and while it worked perfectly with Windows 98, once I upgraded to Windows XP Pro it was awful. There was a delay between when I'd move the mouse and when the cursor would move on the screen... very annoying, and I ditched the old cordless Logitech immediately for my backup plain old Microsoft Wheel Mouse with a cord. It was that bad. I also had a wireless Logitech iTouch keyboard and I was not happy with that because it would unexpectedly lock up my entire system for no apparent reason while I was using Eudora email software. I gave in on the MX700 because Microsoft's new Intellimouse version 5.0 software failed me, and I had no choice but to try another company altogether. :( (Details follow.) The plethora of features on the MX700 is why I gave Logitech a second chance. 8 buttons is more than I know what to do with and the fact that I can program them to do ANY keystroke on the entire keyboard, well, that's what sold me on this mouse (and where Microsoft failed - their five button Intellimouse Explorer with the tilt wheel can only be customized to do pre-defined keystrokes and the one I needed most - "delete" - was not an option in the 5.0 version of their software). My chief complaints about the MX700 are that it is heavy and large. It weighs 6 oz with the batteries in it, whereas the Microsoft Intellimouse Explorer w/ Tilt was only 5.25 oz. Think 3/4 of an oz doesn't make that much difference? It does if you have to move this thing around for 8 hours a day. I imagine if you have carpel tunnel syndrome, it would make a difference too. Men probably won't notice it as much, but as a woman I do. It is also a big mouse... sometimes I think these "ergonomic" mice are a bunch of hoo-haa. My boyfriend likes them because they fit in his hand better... well sure, he has big hands. Women's hands aren't that big though and I have a hard time holding this mouse without getting a cramp in the middle of my palm because of the way it forces my hand to curve around it. I hope I'll get used to it eventually... perhaps my hand muscle just needs conditioning after using the flat basic Wheel Mouse for so long. :) Overall I AM happy with the MX700... I love all the features it has and so far have not had any problems with conflicting software/hardware. There is no delay between mouse movement and cursor movement and it IS rechargeable, which saves a wee bit on batteries (though not that impressive since you only have to change batteries in Microsoft's new mouse twice a year). I've even recommended this mouse to someone else already that uses Photoshop frequently since you can program the buttons to do things like zoom or "Save Optimized As." That is definitely the best option on this product.
Rating: 
Summary: Mixed review
Review: I like this mouse for the cordless convenience. The battery life is good, I just have to remember to put it on the cradle overnight every three days or so. What I don't like about this mouse is that after just a few seconds of being idle, a mouse press does not register unless you move the mouse first. If I rest the cursor on a button and don't press it right away, I end up having to wiggle the mouse again before actually registering a click. Other than that, I have no complaints.
Rating:
Summary: Think before you buy the pricey stuff
Review: I recently bought this mouse as part of the MX duo set. I was sorely disappointed with the mouse quality. The cursor hopped and skipped about, especially on the desktop. The cord for the recharger is too short, and needs to be placed far from devices such as monitors etc. I think that the people who would tend to like this mouse are people who use it to play games, and work at a distance. Since I tend to work at my desk doing detailed imaging work, I found the jumping and skipping completely unacceptable. I followed the advice of users similar to me and after returning this mouse, bought the basic Logitech optical mouse (wired)for $20 and was quite happy with the results.
Rating:
Summary: Could not have been better.
Review: It is not very cheap. True. But by far the best mouse I've had.
The addition of useful but not overwhelming buttons make it a supreme tool.The kick is how well it performs as a remote tool and how smooth the motion is. I usually don't buy pricey products, but a mouse is like a shoe. You have to have the most comfortable and preferably sharp one. The charging cradle is very efficient and full charge takes minutes even if the mouse was not returned to the cradle for a day or two. Pros: +Extremely ergonomic
+Extra buttons (the back/forward buttons for web-browsing rule!!)
+Smooth movement/response
+Prfect communication with the remote base
+Ultra fast charging (indeed never got it drained) Cons:
-Not the cheapest. Good day!
Rating: 
Summary: Inferior and gives repetive strain injury from extra weight
Review: I've 18 years PC experience - bought my first AT286 PC for
$US 2000. Used this mouse for two weeks and suffered wrist joint pain. Then went back to old light mouse for two weeks - no more pain. And yes I have no athritis problems and do heavy weight lifting. I then re-tried the mouse again and confirmed it has no wear near the precision movement control of standard light weight mouse. I have written a letter to Logitech AUstralia about this who are refunding me the money (email me if you want a copy of letter). All these sites have rave reviews:-what crap these are paid for by the sponsoring companies. I see this same pattern of "fabolous" reviews at all large sites. Lies bought with big corporate dollars. This mouse weights many times more than the traditional mouse - how could it be better dodo heads?? Newer is not better.
Rating:
Summary: Pretty Darn Good
Review: I love the mouse, the buttons are easily programmable with the software I downloaded for Mac OSX, and it feels comfortable in my (right) hand. The scroll weel speed is just right! It's accurate, and isn't that the biggest issue? My mom, who is left-handed, doesn't like it so much, she finds it heavy and the buttons aren't so comfortable for lefties. In my opinion the weight isn't an issue, seeing as I don't pick it up much, just shove it around, but my mom's in the habit of picking it up. Our previous mouse was an Apple Pro optical mouse (one--no?-- button and a cord) which weighed next to nothing, which she quite prefers. Hey, the dark material on the mouse is really, really soft, not what you expect! As for range, I can sit on my bed about 6 feet from the receiver and use the mouse on my jeans or the bedspread to control the DVD player--like a remote--and it works perfectly! This is a great mouse.
Rating:
Summary: Really Nice Mouse, Still Cords Involved
Review: This is a really nice mouse, great speed, optics, range, feel... But you'll still have cords running to the computer. I've got a laptop and I hate plugging and unplugging cords all the time so I was looking for a truely wireless mouse, this is not it. The base station, which is a reciever and charger, requires a cord from an outlet, then it another cord to the computer. Now, the mouse doesn't have a cord physically attached, but the wires for the base station are enough to turn me off. So buy it if you've got a desktop, but not if you've got a laptop.
Rating:
Summary: Great for any computer user
Review: I am an enthusiastic fan of cordless mice. The lack of a cord makes a HUGE difference on your wrist strain. The optical version is even better than the ball type. While I used to very strongly believe in the ball, the more I used those mice, the more I got frustrated with the way they picked up any small lint, dust or dirt particles that were floating around and gummed up quickly. You wouldn't notice the drag on your movements until they got severe - but that would leave you with several weeks beforehand of 'slowly growing annoyance'. The optical version slides VERY smoothly, no gumming up of the ball, no drag from the cord. The fact that it's rechargeable is great, too. Just put it back in the charger when you're done for the day and when you come down the next morning there it is, fully charged again and waiting for you. No batteries to buy or to throw in the trash! Highly recommended for any mouse user, and especially great for those of us that are high-usage and at risk of carpal tunnel syndrome.
Rating:
Summary: Best Mouse Ever
Review: Logitech cleaned up on this one -- optical for super-fine tracking, wireless, so no wires dragging on the mouse as you move it, and rechargeable, so you don't need to keep replacing the batteries when they get low. Ergonomically, this mouse is also superior to just about anything, and the staggering *10* buttons (if you include "scroll up" and "scroll down" on the mousie wheel as two buttons) allow you to program many common functions to your fingertips. The only downside to this mouse, if you could consider one, is that the mouse to base station communication is not bluetooth -- though Logitech is about to release a mouse which does in fact do that -- with that Bluetooth mouse, I'll be able to finally take a wireless optical rechargeable mouse with me on the road, and have it automatically talk to my laptop without having to bring the base station (and its wires) with me.
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