I actually won this litter box in a drawing. I was planning on buying one any way. Glad I didn't, it started having problems after five weeks. Of course if I had purchased it, I would take it back and get a new one. But I'm having the same problems others have had, it has a hard time moving a clump of litter sometimes and starts clicking, it wastes litter and now it goes through 5 cycles EVERY time it sweeps even if there is only a small amount and it scoops it the first time.