We are Veterinarians who help a lot with Persian rescue. That is a breed that has become notorious in some rescue circles for their fussy (and often whimsical) litterbox habits. Since we have introduced Cat Genie, our issues with "going" outside the box have all but disappeared. They absolutely love the thing! Even new cats coming in that have a bad history seem to immediately get on board, and will sit there watching it run, fascinated, and then immediately want to use it, even if they don't really have that much to do. Couldn't recommend it more highly!