The ScoopFree Classic Self-Cleaning Litter Box is easy to set up and maintain. The bottom is a disposable box that comes with a lid. The crystal litter is filled in here. I've tried crystal litter before so I know that the crystals absorb the liquids and dry out the solids. With this box the solids are raked into the covered area so the litter box stays clean longer. The rake is quiet when operating and the light on the box is an indicator on how it is functioning. There is a sensor so it knows when a cat enters the box and only rakes when it is safe to do so. I like that this doesn't cover my house in dust. The pamphlet that comes with this is helpful to know how often to change out the box depending on how many cats you have and it has tips on how to transition cats to using crystal litter too.