Had a loose scroll wheel with the first mouse but got it exchanged and am completely happy with the replacement. I do wish that they offered a version without any lights since there are no power states and the LED stays lit irrelevant of the computer. That said, I prefer their minimalist approach and wouldn't want to see them start throwing software at the problem. If I was going to knock it for anything, it would be the side buttons since they're hard to activate without adjusting your grip, but as they don't affect me, I'm fine with it.

"Hands down the best mouse pad I have EVER had! I was having pain in my hand bone from repetitious use with the flat mouse pad I had used for years, and I now have no pain whatever with this one. I was concerned it would be too soft for the mouse to work, but that is not the case, it works perfectly. Don't let the negative reviews sway you, it is amazing, and is WAY better than I expected!:)