Had for 3 months now and enjoying every second of it. Sets up easy, had a few hiccups in beginning but works wonderfully now. Took my young cat 2 seconds to use it but about a week for my older cat. Love the Eco-friendliness of the unit, the auto cat activation and that it plugs right into my toilet line and bowl. The unit makes noise, be forewarned, but easily used to it after a few days. My kids sleep right through it.