This tree took me less than 20 minutes to set up with absolutely no trouble. I loved the huge bolts it used so I couldn't lose them in the process and they were super sturdy. My cat absolutely loves the little house part and he sleeps in it all the time. He's 13 pounds but I'm not sure if he was much bigger he would fit comfortably. The perches are large with little sides which I wanted to be sure he wouldn't fall off. I'd buy again if it ever broke or wore out.