Summary: I love Logitech products, and came to this mouse from a Logitech G5. At first I was concerned about the fact that I "lost" features, such as more options and more settings, but this has been a great mouse for the price! I have smaller hands, and I think the G100s is near perfect. Yes, more features and buttons are always nice, but considering I paid less than $20 for it, I'm extremely happy!
Summary: For a mouse that I have had barely a month it works great, except left click issue. It scrolls great, Right click is perfect. It is just hard to do every day things and gaming when only half the time it registers the click. Re-installing the driver doesn't work either. It has to be a hardware issue. Please read mkultra review. Its Identical to the Pros and Cons I would list here.
Summary: I bought three gaming mouses: The Steel Series Sensei MLG Edition, Razer Taipan and the Logitech G100s. I ended up keeping both the Razer Taipan and G100s. Pros: Small (smallest of the three) Affordable (cheapest of the three) Very accurate Cons: The build quality of the mouse itself is not as good as the other, more expensive mouses. The cable is not braided (like the others) The USB connector is not gold plated like the others The mouse click feedback is too light.