This is a great litter box, and it works well, but is ideally only for a single cat household. Two cats is one too many for this product. The design and everything is great, it’s self cleaned well, however, the problem lies with the replacement pans and the litter. The cost of the replacement pans and litter is quite pricey and it’s also hard to find. This would be the perfect box for a single cat, and would be great for those on the go.