I set the PetSafe self cleaning liter box up in minutes. It is indeed quiet and has proven to be super clean and convenient.  I would recommend for those that have one to two cats, is the perfect balance, of usage versus cost of replacement litter. A really terrific addition for the cat persons home. It is proving super clean, no mess , no fuss. The cats took to it quickly and we all appreciate the convenience. A really good product.