This is truely the best mouse I've had since my old MX518. This one reminds me a bit of her. I also tried a Logitech G700 and A G9x, and both were decent to play with, but this mouse just feels perfect.
I like the metal surface very much, because it gets warm and sticks perfectly to my hand. You shouldn't get sweaty hands though... I use this mouse for all kinds of games and find no fault with it whatsoever. It's not a very small mouse and fits greatly to my rather large hands.
The mousewheel and the middle mouse button are perfect and all the individualisation is just fun.
She's a little bit too expensive imo but if you got the money, go for it and get this beauty ;)