Summary: The Func MS-3 is a very nice mouse for play, but has a few downsides besides it high price of $79. You do not get the latest generation of Avago's high-end laser sensor, which curtails the mouse's DPI a bit—a minor issue as most gamers do no utilize anything above 4000 DPI. What you do get are very good ergonomics for pretty much all hand sizes along with a wealth of easily assignable buttons.
Pros: Superb ergonomics, Good build quality, Lots of buttons, Feature rich, Nice design, Good driver suite, Great tracking, Two different high-performance surfaces, Base design is very good, Comfortable to use, Perfect glide and control, Compatible with most mice
Cons: Large and slightly heavy, Pricey!, Some buttons are not that useful, Balance of the mouse is not perfect, Not the newest generation sensor, Scratches show easily, Can be noisy when dirty