Anyone who has cats and doesn't own this litter system is MISSING the boat. Works very well. The worst for me with regular litter was the ammonia smell, that is now gone forever. I have two cats and it works great. The size of the litter area could stand to be a bit larger for larger cats, but works adequately they get used to it fast. They seem to like clean litter, used it instantly. Need to pick very small pieces out occasionally that the rake can't get, but they are dry and odor free no problem, works like a charm !!!!