Took a while to put together, but works great. DEFINITELY line it with contact paper before letting kitty use it - even a high walled litter box can't contain one oopsie! 

Our cat figured it out really quickly - we left the door ajar for a few days before shutting it, just in case though. And she has two litterboxes so sometimes she uses the other, but she definitely knows where this one is, and even likes hanging out in there sometimes (I took out the divider so there's a big space in front of the litterbox). Weirdo!