First of all I want to say that this was a breeze to put together. Everything needed in the box and I had no problem even though I have severe arthritis in my hands. I had barely put this together when two of the cats started to investigate. The one loved the top perch right away and the other liked the basket on the side. It took a while for the third cat to come around, but now after a couple of weeks they are all over this. The only thing they have yet to use is the hammock at the bottom and the tube at the top which is really too small for any of them. They are happy therefore I am happy. Definitely happy with this tree.