I brought this mouse over a year ago and I've used it ever since, for the most it's been a good mouse but over my time with the mouse I've had more than enough problems with it. I've had the mouse all of a sudden disconnect and then take a couple seconds to reconnect in the middle of sessions which has been a right pain, the issue has been ongoing and tends to happen at random times but it does it a couple time and the won't happen for large periods of time (anywhere from 3 weeks to a month and a half.) The software can be a pain in the ass, I've had the lighting change color profiles, reset profiles, and just been a general pain to deal with, although the software has gotten better over my time with the mouse through updates. The mouse's lighting has bugged out on many occasions, most commonly when it's been woken back up where some of the lights on the side of the mouse stop functioning, solved by turning off and then back on the mouse each time, but this shouldn't be a problem to begin with. The mouse has done me good for the most part over my time with it, it's a great design and it fits perfectly in my hands, it's just got some other short sightings and I wouldn't recommend this mouse unless you overlook its bugs.