Pros: Great value for money, simple to use, comfortable
I use this mouse for gaming, web browsing and it does both with ease. On gaming 9 times out of 10 when I play (BF3 mainly), I end up with a positive K/D ratio, and without this mouse I dont think that would be the case. The movement of this mouse on my mousemat is swift and quick. I also never have issues with my mouse cursor flipping to the top of my desktop screen like you sometimes get with cheap OEM mouses.
The mouse has forward/back buttons, scroll wheel, +/- buttons. I only ever use the forward and back buttons for browsing the internet, which saves alot of time clicking onscreen buttons.
The Logitech logo has mostly faded on the top of my mouse, but I dont mind that at all considering how long ive had it. I think I only paid about £20 for this mouse, and considering its lasted so long, I think thats money well spent.
All in all Id give this mouse a 5/5, it might not be available anymore but its successor the Logitech G400 is basically the same mouse but with higher DPI on the laser sensor.