For BIG people with BIG hands!
There's no doubt that the Roccat Kone is a high-tech precision gaming mouse with many great features.
It has a 3200 DPI Pro-Aim Gaming Sensor to reduce Pick-Up-Flight; a TCU (Tracking Control Unit) to calibrate the laser power to match the mouse pad surface; an Integrated Turbocore to save CPU power; 128kB of Internal Memory to save up to five Game Profiles; a customisable light system with 5 LEDs capable of displaying the full spectrum of colors; and a FastClip Weight Kit to change the weight of the mouse from 118g by 5g, 10g, 15g and 20g.
But the so-called Ergonomic Hybrid Shape that is supposedly suitable for people with both claw grip or palm grip fails to impress me. If you have large hands then you should find this mouse very comfortable and easy to dominate.
However, if you're like me and have small-medium sized hands then don't be surprised if you get wrist ache and have trouble moving it quickly from side to side. My wrist ache got so bad after the first 5 days I put the Kone back in it's box and got my old faithful Razer Diamondback mouse back into action. The Razer is such a fantastic mouse; it's fast, accurate, and lightweight so you really feel in control of the mouse rather than the mouse controlling you.
In summary, if you've got big hands (Roccat is a German company) then buy the Roccat Kone, otherwise get something smaller like a Razer Diamondback.