From the first grip, I loved, it is large and a bit heavy, just what I need (after, it is not suitable for everyone) because I have big hands. The sensor is excellent, very good accuracy (FYI I SteelSeries 4HD a carpet), the button to change the DPI on the fly is very convenient, and I for one, two modes are sufficient (I put in 1500 DPI and 5000 DPI for FPS games). The only tiny fault, it is light, it is not perfectly adjusted, a simple example, it's either bright orange or red, there is no dark orange, if you see that I mean, but it's really to quibble, so I leave 5 stars it merits ample.