the SteelSeries Rival is a rock-solid mouse for gamers. Thanks to the optical sensor and a good Mousepad there really is nothing to complain about. Who knows SteelSeries, knows that there is a software suite to mice where you can adjust everything. The mouse has worked flawlessly on the following Mousepads: - SteelSeries QcK + - Razer Goliathus Speed - Roccat Taito - Sharkoon 1337 mat