I have a Razer Aetheris and love it. It came with Razer Central and Razer Synapse, however; two of the slowest, most cumbersome, time wasting resource hogs I've ever had the misfortune of having inflicted upon me. Seriously, how is it possible for a mouse control suite to be so in the way?! Upon computer startup the software requires repeated inputs and prompts from me because it either fails or crashes and needs to be restarted. Just checking the battery strength or changing a setting is often a five minute ordeal that regularly has me staring at the screen with my mouth agape as I wait for one or the other of these programs to finish updating or find its way through whatever labyrinthine processes they need to navigate in order to finally do what I need them to do. Why, for instance, does it take several minutes for the bloody software just to realize what devices are installed and give me the prompt to change them? Why do they need to update so often? And what could possibly have changed so much that they need to waste so much of my time doing so?! I'm telling you now: I will not buy another of your mice if Synapse and Central are attached to them. I just won't.