I had to install all the ates of the Windows 7 system, restart the computer several times, reinstall the Synapse 3 program so that the mouse was defined in this software, which took about three hours. Took for games. So far, she has performed well. Whether it is worth the money - I canโt say for sure, but the clicks, the sensor, the Teflon legs . I bought it for 3500, and Iโm generally satisfied.