This cat condo/scratching post is great.  The cat took to it instantly and used the scratching posts before I could install all of them.  She is a small 7 pound cat and just fit into the box unit section but she sleeps on all levels and loves it.  My only negative observation is that it bounces quite a bit when she is on the top level but has not toppled yet.  She is on the small side so perhaps a larger male cat would not be suitable for this unit.