Could NOT be happier(!) These are "not-too-big" and "not-too-small"; beautiful silky-smooth knurling on the wheel make it operate smoothly, and both buttons have a nice/"positive" click, and operate perfectly, with either Win7's built-in driver, OR my Raspberry Pi's. Thanks Monoprice, for a "dead-battery-Free" mouse, that is SO perfect in every way!
I've purchased the Blu Streak mouse from Monoprice in the past, and have been absolutely pleased with it's durability & performance. I saw this mouse (on sale I believe), and decided to give it a shot. So far, so good! It tracks very well, and the soft-touch buttons work as expected. I think it's a little on the small side (about 3.75 inches), but that doesn't concern me. It might be a factor if you're a gamer, but some might like this size for that purpose. My wife has no complaints either (when Mom is happy....). Great mouse, excellent value, I'll keep it!