alt Hacker NewsNot OP, but I have a litter robot 3 that is still going strong after 10 years, and a litter robot 4 that is around four years old. The only problem I've run into is occasionally the pinch sensor will get bits of litter stuck in it and I have to take the globe off and tap/push on the sensor housing, then it will allow cycling again.
Great machines!
Do you use it with multiple cats? I know they advertise it that way but I'm curious where the rubber meets the pavement.