Pros: feel of it. smoothness of scrolling. affordable price. customizable buttons.
Cons: nothing as of yet.
I just got this mouse. I saw nobody else wrote a review, so I decided to pitch in. All in all, this is a very good mouse. The instructions said I would need to download and install the software for the scroll wheel. Turns out, I didn't even need to, it just did it by itself. The mouse is Bluetrack, so it's like a laser mouse, but a blue laser instead of a red one. The buttons on the side feel nice, and if you don't customize them, they can be used as a forward or back button, like the ones on an internet browser. The mouse is smooth when it scrolls, a lot better than my old trackball, not to mention that the scroll wheel is also very responsive and smooth. It says it's not compatible with 64 bit Windows XP. I don't know what it means by 64 bit, but obviously it works fine with mine. I highly recommend buying this mouse.