We could not be happier with this purchase! It was shipped out shortly after purchased and delivered within 2 days. We have the automatic litter box that is on the larger side and it fit with no issues. They even put a small hole in the back to pull a cord through. Left the door open the first couple nights so they cats would get used to it, but they seemed to know it was for them right when we set it up! First purchase from Wayfair and will be a customer for life!