Love, love, love this! I purchased the jumbo to accommodate a hooded cat box, I will be honest, the max height of the hooded box cannot be more than 16 inches or it will not slide in or out of this unit once built. So be aware of this! The height inside will accommodate up to 20 inches but you will not be able to take the box out unless you disassemble and remove the door... It wipes clean but watch out if you have kitties who pee against sides, the pee will seep into the panels and unless you tear it apart to hose it down, it will be hard to clean that up. Other than that if they get a mess on the floor or solid messed on the sides its an easy cleaning. Looks very nice in my office and my cats have no issues using this. My biggest kitty (25lbs) and easily get in and out.