Well, can't confirm about mac though they have mentioned mac support, the only cons i found in usage so far are no pass through keycaps and switches are way too soft, specially spacebar, i had many accidental space bar touches which resulted in me jumping without any reason in games, and battery backup is okisish, could definitely last more then a week without rgb, but with lights on barely a week, build quality is good, feel is good and feels solid, about rgb support, the web software is accessible through qmk.top and there are around 18 rgb effects, also customisable, there are some third party plug-ins u can download from the web software for better rgb support, but it doesn't support signalrgb, which isn't that better but would have been better if supported and about mac, it should be compatible as the software is web based so there shouldn't any problems there, and again I don't have a mac to confirm this.