I originally purchased this mouse to use in conjunction with my laptop PC, after I got tired of using the little pointer and the touch pad that it had built in. I personally used it for a couple of years or so, and then I ended up passing it along to my girlfriend, so she and her son could replace the old mouse that came along with their desktop computer. They are still using it to this day.
The mouse itself is nicely sized and shaped, and fits comfortably in my hand. Parts of the mouse are covered with a rubberized trim which I really didn't find to offer any sort of benefit or hinderance; they were just 'there'. The buttons and scroll wheel work well and have been very dependable so far.
Since this mouse originally came into my possession, it's been used for everything from playing games, and editing photos, to browsing the web and answering emails, and it performed well in all but the most extreme cases. The only downside I've noticed was when playing some games, specifically older emulated games when the mouse is used in place of a trackball. In those cases, I've noticed that when the mouse is moved extremely fast, it doesn't seem to report any motion to the computer at all. The cursor on the screen just seems to stay in place. If I moved the mouse slower, though, it worked fine. Fortunately none of us are hardcore gamers, so this issue doesn't affect us too much.
All in all, if you're looking to replace your old ball-type mouse, and want something to handle your normal-duty computing tasks, this is a decent basic mouse and is available at a pretty decent price. If you're interested in using it for playing extreme games, or are interested in some additional buttons or more advanced features, you'd probably be better served to look elsewhere.