I use a Cyborg RAT7 myself, it's one of the few mice that I can adjust so it's big enough for my HUGE GORILLA HANDS and personally I think it's great. The switches and wheel on the front are actually wide enough that I can fit three fingers across them for comprehensive use, and the adjustable sensitivity settings are a real boon in games where you can go from reflex shooting to sniping and back very quickly. It shouldn't make that much difference having four levels instead of the three I had before on my old Sidewinder (one of the other gaming mice that is built with GORILLA HANDS in mind but less adjustable so not for everyone), but it really does.