Use
The Roccat Kone XTD is very fast and precise with the 8200 DPI. It perfectly slides on a mouse pad and these pads are correctly positioned: two at the front and at the back a wide marries the rounded shape of the mouse.
A significant downside if you are the type to use all buttons, if you click the middle button on the dial, it is very likely dincliner the knob by mistake, and thus to use the button associated with this movement.
Design
The design of this mouse is successful, matte and glossy in some places, more LEDs are configurable at will and can change color in certain games within certain parameters.
Software
The Roccat Talk software is complete, there are a lot of customizable settings with this mouse and even includes a "statistics" tab for more details on your way to use your mouse!
Conclusion
This mouse is really great, but jaurai favorite mouse "bounced" on the back, for what can fit perfectly the palm of my hand. Unfortunately, apart from the Razer Lachesis, no mouse nest like that.
Otherwise, the price is not very high for a mouse of this type, and is very good. In addition, if you are a big player, this is an investment to make.