I chose this particular cat tree because I have a 6 week old kitten who still hasn't figured out how to jump up very well. She is able to climb the ramps to get to the higher levels. The top two levels have an awkward design and not sure most cats can get up there. She lives the little "houses" and the sisal posts.  It's not the best quality but good value for rhe price, especially since this is for temporary use until she's big enough to have the run of the house. Assembly was a royal pain, which in large part contributed to the lower number of stars.