Pros: I won't waste your time with how awesome it is. Look at the ratings, they speak for themselves. But I just wanted to let you know this mouse is version 2 and comes with a hard case. It is not the one pictured where it's wrapped in plastic.
Summary: Worth the money. It might not look as fancy as some other gaming mice out there, but this is definitely some of the best bang for your buck. I like to think of it as taking a more mature approach to a budget gaming mouse.
Pros: Great Value!
Cons: The LEDs can be a bit bright, but it doesn't really matter since your hand will be covering them most of the time.
Summary: The program that lets you set the mouse buttons does not have a profile for games. What I mean by this is you can't set the middle button as "Mouse button 3" and it automatically change to "4" on the keyboard for a game.
Pros: It was not that expensive. The buttons work well and all of them (except for the DPI button) can be changed.
Cons: The mouse likes to stall a little. I'll try to move it some and it takes like an 8th of a second to wake up. It could also be that it does not like my mouse pad.
Summary: Aside from a fast scroll option, this mouse seems to have most of what you would need. But I dislike it the more I use it. It has the singularly worst tracking I have ever experienced (short of an old ball mouse impacted with dust on its' tracking axis'). At first I assumed it was due to a switch from a laser mouse to an optical, but then recalled an old MS optical I had tracked fine, and a current Acer optical I just used worked fine.
Excerpt: Ill start off by marking its ergonomic shape, i have medium sized hands, and the grip and the way your thumb rests is really nice. I cannot Palm this mouse with my hand but with gunning and sniping, the claw method feels fine.
Summary: I tried out the logitech G400, and this Gigabyte mouse just feels better. It is very comfortable in the hand, and the wheel mouse works great and feels so much better than the G400. My game also improved so much this mouse.