This is the best purchase I have ever made for my cats! It was so easy to assemble, and I wasn't even halfway done before the cats started playing on it. They like to play "King of the Hill" on the top perch; it's a great way for them to get some exercise. The price was much lower than any similar product at the major pet store chains. My cats are on it now...it gives them their own furniture and they leave my couch alone!