Do not buy
Do not buy. I've had it for less than a year and it stopped working. They sent a part that did not fix it. Rather than replacing my litter robot they want me to do all sort of steps first. No. Send a new one and il send the defective one back. UPDATE: WHISKERS is sending a new one BUT that should have been the answer after the part didn't fix it. I don't have the new robot yet.