Pros: - Works on ANY surface.. My old USB optical mouse wouldnt work on glossy surfaces, but this one does! - As sensitive as you need it. - Plays games great. - Not too small or too big. - Scroll button also works side to side. Great for spreadsheets!
Cons: - The one complaint I have is that when I play first person shooter games, the scroll button doesn't work in the games. However, this is easily fixed by right clicking on the mouse in the taskbar, and clicking "unload" the mouse software.