Summary: I've had this for about a month now and it works like it should, a tad small for my man hands but my wife likes it. My complaint is that the one I got has some kind of piece broken off inside so I can hear it rattling.... Very annoying but I might be able to fit that myself.
Summary: beware when looking into the size of this mouse, i assumed looking at the dimensions provided by amazon that it would be an average mouse size. it is not, it is tiny! Tiny at least compared to my average man-sized hands. I have returned it to amazon to exchange it for the next size up.
Summary: I have small hands as I am a 4"11 girl, so I needed a new mouse that my hand would fit on comfortably without giving me cramps after a while. This mouse is fast and comfortable. I received within two working days of ordering (Ordered Thursday, received Monday) and it seems to work well so far.
Summary: Nice size and performs basic functions without a problem. I wish the scroll wheel could scroll sideways, like on other mice. The size and shape are quite nice, and the rubberized sides make gripping secure.