This is a very nice cost tree, my cat loves it! He was up on it immediately, playing with the mice on it. The only thing I see that could be improved is the small house tower part. It is wobbly and I think that is because it is one only one post and that doesn't supply much support for it. My cat will still get on it but it takes him a second to get his balance right because it shakes. That is the reason for only 4 stars. Other than that I am very satisfied with my purchase!