My 3 cats love it!!! Assembly was so easy, I did it by myself in about 30 minutes. It's very sturdy and doesn't wobble when my 12 pound and 8 pound cats are on the top two levels. I have a 21 pound cat that doesn't have any problem fitting in the bottom hut for a nap. When are we going to make one for people I sure would like to nap in the hut.