The roll & clean are AWFUL. I bought one & thought it was great for about a week. Then it dawned on me that it was creating a stench as there was no way you could use a liner with it so you had to scrub it clean, that is SCRUB it clean, as everything stuck to it. You are limited as to what litters you can use with it too.

A regular hooded litter tray with liner & your fave litter with a litter locker is about the best & most economical you're going to get.