This self cleaning cat box is the cheese! I love that the litter stays in a disposable box and scoops the poo up under a flap. After 30 days you just throw it away and replace with a new one which is very inexpensive! My cat took a few days to get acclimated to it but she now only uses this box. Its pretty sturdy cleaning rake that goes across and won't scoop while the cat is in the box. Great product!