I bought this for my two cats. The fat, older cat isnt interested in it except when I put treats on it. My little 6 mth old kitten however, loves it and plays on it everyday. He takes naps on the top level, and bats around the hanging toy. He also uses the scratching posts a lot. And every now and then I find him sitting in the little house looking out. Instructions are easy and putting it together was straight forward. If you have a big fat cat, dont bother. But for younger frisky cats its a great place for them to play.