Pros: I've put THOUSANDS of hours of gaming on this mouse. Millions of clicks I'm sure! The primary mouse button finally seems to be failing. However I only notice it in one game so far. The 4 buttons by the fingers allow for SUPER FAST reactions with minimal finger movement!. I typically have them set up as my 1,2,3,4 buttons so I can switch weapons,spell,skills etc in an instant!!

Cons: OUT OF STOCK!!!! :( I wish it was about a quarter to a half inch wider. Other mice don't have this button configuration!

Other Thoughts: I actually own the G300, rather than the "S" series. It had a silver top, I've managed wear down through the coating. I've also worn the rubber side down to the plastic, trust me it's surprisingly thick. I can't tell you how hard it is to find another mouse with the 4 buttons next to the fingers!!

Pros: I picked this up locally since I wanted a smaller mouse to keep with my laptop, and a local store had it for the same price as Newegg (~$30).

-Solid feel

-Non braided cord (had problems with the braided cord on other G-series mice fraying)

-Programmable buttons/DPI

Cons: More preferences than anything -

-Small and light. Could be a plus since I'm using it as a laptop mouse, but borderline too small, even though I mostly like smaller mice.

-Never got the trend of "it's a gaming peripheral so it's got to look EXTREME!" The G300S could do without the light blue accents like it's bigger brothers (G500S and G700S)

Other Thoughts: Not a pro or a con, but my last few desktop mice had been laser based, including a G700S. Switching back to a decent (as in not one of those cheap freebie mice included with a PC they hand out at work) is...different.

Pros: it's amazing. really nothing I can bash on with this mouse. all around well built, like all Logitech products

Cons: nothing

Pros: -Nice feel to it.. fits in my hand
-LGS Software.. best I've ever used
-LED colors.. very cool
-Extra buttons.. don't use them but a very nice touch
-Overall quality is great! :)

Cons: -None!

Other Thoughts: I used to own a mouse like this.. the older G300 from 2 to 3 years ago. Lasted me a long time.. unfortunately died. Bought this mouse as a gift for my self.. and I am very happy with it. Will buy from Logitech and Newegg again. Also, fast shipping! :))

Pros: Extremely useful button control. Not only for gamers. I use it the for a CAD workstation and its smooth operation makes selection of lines and symbols extremely easy.

Cons: None that I can find!

Other Thoughts: For all the pros and the price, you just can't beat it.