My cats have more than one itter box each; when this came out of the box they played in it; after putting litter in in one used it one time (hence 4 stars)... and not since. Not sure why. I am hoping they take to it

Pros: Tall sides, smooth surface, easy but bulky to clean in tub.
Cons: Litter did stick to sides albeit easy to clean; bulky to clean in tub because of its size