I would give this 3 stars as I found it quite hard to assemble, needs better instructions and one of the parts did not line up with the ledge so would not screw in at all.  It does still look nice, my cat doesn't seem interested in it yet but I'm sure she will. Update: My cat now loves this, I have taken off the ladders as she didn't use them and removed the top tier and fixed it to where the ladders were instead.