My three cats take turns sleeping in this!  Room for all three but they don't use at the same time. They do enjoy the scratching posts.  After my daughter saw my cats use, she ordered one and all three of her cats use regularly, 

Pros: Husband assembled without difficulty.  I have had to clean, due to cat throw up!  Cleaned well with wet/dry vac
Cons: The green leafy stuff looks cute, but I can't secure in place as well as I would like.  Not a big deal.