We were looking for a high cat tree for a large cat. Since we have a dog, we like to feed the cat high up on the tree. We used to have one with square platforms which gave us the extra room for the bowl which we loved but couldn't find anywhere.  The cat tree was easy to put together and our cat accepted it right away and it is large enough for him.  My only complaint is that the long post is very wabbly since it is 2 pieces screwed together.  However, it works and our cat often lies up on the top platform even if it is shaky when he jumps up.