First, let me tell you the good - the tree is sleek and sturdy.  It is nice addition to my living room.  You can see Dex likes the bottom part. It is the top part - not so much - by either of my boys and thats because the makers didnt consider adult fluffy cats. A kitten, hamster, squirrel would like the house part. The whole it if fits, it sits option doesnt work with big boys. I will rearrange and adapt...