Love this mouse, switched from Logitech MX 518 after some time on the good old Microsoft Intellimouse 3.0.
The high DPI of this mouse makes a difference, and the DPI has three levels, this can be switched simply using a button under the mouse. the colour of the led under the wheel even change colours depending on this DPI level.
The sensor detects very very slim off distance from the surface.
Perfect size for my hand, sleek and simple design, smooth rubber on the top of the mouse, the wheel has a good feeling.
The mouse seems solid. used it for about 3 months now with no issue. not an heavy mouse though.
Best mouse I've used so far. playing mostly sc2 with it. got better control than with my previous mice. (intellimouse, logitech mx 518, logitech mini optical, attempt with some Razer Abyssus).