I use a non mechanical G15 rev.2 because it's pretty subtle as gaming keyboards go; it looks professional, has good ergonomics, the backlight is a pleasant color, and they managed to limit themselves to 'only' one row of useless space-gobbling macro keys instead of the 450 that seems to be the industry standard. Unfortunately they don't make them anymore and I have yet to find a suitable replacement.
Still have mine- the keys are downright awful, some of the worst I've ever used outside of a laptop, but it does perform it's function very well.
Still, it has no place on my gaming rig; I currently use it with my mobile workstation, since the keyboard on that laptop is literally the worst I've ever used (go Clevo!), and the touchpad is up there- it gets my G500 as well. Would you believe that I can fit that keyboard, with wrist-rest attached, comfortably in my Targus 17" backpack?