Finally a proper replacement for the Logitech G9X, this has been a long time coming Logitech has not replaced their flagship mouse in a ridiculously long time. They have been making wireless gaming mice that are great in their own right but wireless and gaming do not go hand-in-hand there is always lag and then the battery is dead. This mouse feels like there was some real thought put into it, very smooth and functional. The buttons are all laid out in such a manner to allow ease of use for long stints of gaming. We will be replacing all of our gaming stations with this mouse.