Terrible litter box. The parts don’t go together well. There are gaps between the wall and the tray so urine spray doesn’t stay in the litter. The grate at the front of the box blocks the tray from going all the way in. Under the tray the bottom is open so when urine spills outside of the tray it gets on the floor.  It’s also smaller than expected (not extra large in standard litter box terms). I’m awaiting return/refund instructions from Wayfair. Good customer service so far. The person I talked to said I shouldn’t have to clean it and send it back.