This tree is GREAT!! I have several (fat) CATS that love to climb the tree. The three houses are big enough to fit even my fattest cat in it. She's about 13 pounds!!

Pros: Large enough for all the cats. They love the rope columns too!
Cons: I use it outside so the cats can climb onto the roof. I did have to secure it to the wall of the house to make sure it doesn't fall.