Great, until your cat pisses right into the filter

Whisper quiet

Kitty in a cement mixer.

Great, unless you've got a cat that likes napping in their litterbox.

You can get a manual version of the flipping litter box at the pet store for .

Meow. Open the pod bay doors, Hal. Meow.

This seems like another worthless Japanese invention.

Incidentally, we wound up getting one of these and it's pretty fucking awesome. The biggest issue is finding the right level of litter - too much and it won't empty properly. Too little and, uh, well, there's not enough litter.