The GLORIOUS Model I is an excellent mouse for FPS gaming. Overall, it feels well-built and has excellent click latency, so it's well up to the task of competitive gaming. The mouse is pretty lightweight, as is its cable. The feet glide smoothly on mousepads or desks without causing drag. Performance-wise, you can adjust the CPI precisely in steps of 50 within a very broad range and adjust the lift-off distance and debounce settings. Unfortunately, this mouse is fairly large and isn't well-suited for small hand sizes.