Its ok but sadly it does not keep the smell down - we have 2 kittens, and the smell is not contained inside by any means, when the item arrived and we set it up, we never got the plastic white part at the front which we feel ensures the flap at the front is down a bit more - however we needed to set this up - as we had no back up or alterative for them. So, the flap is slightly open all the time - we cannot fit bags in there either as it does not go in its runner - and the mess it leave when they kick the litter comes out, and the tray takes a bit to get back into place.