Rating: Summary: I love mine Review: I love the Sensa Classics. The mechanism is by far the best of any of the pens I own. I have been using mine for three years and never had any problem with the grip.
Rating: Summary: not so smooth Review: I'm not sure if other pen fans out there have noticed this or not, but every Sensa ballpoint pen I own (and sadly I own more than one) has the same incredibly annoying problem. The ink flow is splotchy. Whenever I write there are consistent breaks in the lines. Undoubtedly this is a problem with the "space age" refill, but I find it pretty intolerable. What good is a pen that is comfortable and writes under water when it doesn't write as smoothly as a Bic under normal circumstances?
Rating: Summary: Ok for a little while Review: The Sensa Pen is a great pen until after about 1 month the grip breaks. It will start leaking and the grip will be destroyed. If you have money lying around the house and want a pen for occasoinal use. This is your pen. Otherwise stick to other pens.