I bought this mouse to replace my aging (and breaking) Razer Imperator 2012 Edition, and I must say that I am very pleased with it. It's a light-weight mouse, meaning that it is very easy to move around, and the sensor is extremely responsive. By turning off acceleration in the settings, I noticed no weird jumpiness or slowing down, nothing of that sort. The sensor itself goes all the way up to 16,000DPI, which is kind of insane, unless you are playing a game at a fairly high resolution like 4K, which I am not. Personally, I tend to play FPS games at 6400 or 8200 DPI, which for 1080p gaming, seems to work best for me, but your own personal comfort levels will vary. Speaking of comfort, this is a very nice mouse to hold, especially considering that I have fairly large hands, and the mouse doesn't feel like it's too small for me. The rubber grips on the sides improve that sense of comfort and control. Some final thoughts are that my mouse did have a freezing issue which forced an unplug and then replug, but this was solved by a firmware update. If this happens to you, contact Razer's tech support, and they will give you the necessary firmware upgrade, as well as instructions on how to install it. Apart from that, I think this is an excellent mouse, and I would recommend it to anyone that is in the market for a new mouse, especially one for FPS gaming.