I have the G915 and sure as for the hardware its awesome but the software is crap. Right now my keys wont light up thanks to Logitech messing up the firmware somehow. I upload a profile to onboard memory but it dont work when system is set to use onboard memory. Even if using software and they system goes to sleep and you wake the pc keys wont go on since it will use onboard memory during that time (i think). It was not like this before the last update. Sadly there is no way to downgrade either.