Summary: This mouse is great. It is very comfortable. It is great for gaming. You can turn up and down sensitivity when need to with a click of a button. I recommend you to buy this mouse if you are going to use it for gaming.
Summary: I went from a stock ball mouse (<200dpi@200hz) to the G5 (2000dpi@500hz) and my accuracy in FPS's improved dramatically. The mouse just feels natural in my hand, w/ no buttons you can accidentally push (unlike the G3). The scroll wheel feels very smooth and doesn't skip over weapons when switching.
Summary: Well if you are looking at purchasing a G5 then you probably know all the Pros. The only Con that I can think of is that there is no Forward Button, only a Back. They fixed this in a later version of the mouse. Overall its an amazing mouse and is definitely worth the money.
Summary: eh.. i bought this mouse just because of the bf2142 designs it had on and it was the only one on the shelf. Now as a mouse... it's good. I haven't really messed with the weight thing but i'm sure it's helpfull somehow?
Summary: Not much to say other than this is an AWESOME mouse - best I have ever owned. DO NOT go cordless if you are a serious gamer - use this. Graphics are ok and for the price, you can't go wrong. UPDATE 03/2011 - Still the best mouse ever invented. Works great. Graphics are sweet also..
Summary: After purchasing this mouse I can honestly say my fraggin of my enemies has increased dramatically. Having a mouse that can keep up with your movements is something of a beauty and I only wished I had invested in one earlier in my gaming career.