So far I'm giving his 5 stars, we will see how well it works as a litter box when I get my cat. I read alot of reviews about odor control and the issue with plastic litter boxes so I thought I would do things right from the start and go with a metal box. Problem is it's so much more expensive when it's labeled for cats. This seemed to fit the criteria. I tapped some foam around the rim for kitty safety.