Cons: This is a big fat mouse, and I have large hands. You have to cup your whole hand to use it. The mouse is also very vertical or tall and it feels uncomfortable after all-day use. I start having severe pains on my index finger from prolonged use. I've switched to a smaller, flatter, Logitech mouse and the pain went away. The mouse is designed too large and vertical for prolonged use and especially bad for gaming. Stay away.
Summary: This mouse has, to me, the bare minimum number of buttons. Not sure if that's much of a con, though. It has two side buttons which are... oddly placed, but I'm getting used to them.
Pros: Nothing really exceptional, just a solid built, affordable mouse.
Cons: This mouse is interesting because of several features, namely the ambidextrous design and selective DPI which sound cool, but ultimately come up short. The design and button layout makes it sort of awkward if you're used to a more ergonomic design, such as the Logitech design I was replacing.
Pros: Ultra smooth, great response, works on my mouse pad, looks good, matches with my color scheme, seems very durable, perfect weight & worked right out of the box even though I didn't install the software first as was recommended
Cons: Only con is I didn't buy it off newegg...found it on another site for almost half this price shipped..and couldn't pass it up at that bargain price..felt like I cheated on NewEgg, but I needed a mouse that was good with gaming and affordable. The cheap 8$ Logitech mouse from Walmart I had been using just wasn't cutting it.
Pros: 1. Almost the exact same size as the Microsoft Wheel Mouse Optical, which I am used to.
Cons: None. Literally no cons. This does everything a mouse should. It is the perfect size. I have medium-large hands and despite this mouse being smaller than other gaming mice, it fits my style perfectly (I user a claw hold). Best mouse on the market.
Pros: Nice form factor is you don't care for ergo mice. Scroll wheel is nice and clicky, key for games. Side buttons are solid and give an audible click. Great tracking and decent DPI settings. Great drivers with perfect integration into the Windows 7 mouse control panel applet.
Cons: A little light, might be an issue for some, doesn't bother me. Side buttons are slightly offset compared to some mice, took me a little adjusting but not a deal breaker.