As other reviewers noted, kitty seemed to know right off that  it was for her. As I was unpacking it, she was right there supervising. I had to move her off the shelves so I could install them, then had to scoot her out of the little house for the same reason.

Assembly was pretty intuitive, with slight exception of figuring how to turn the "house" to line it up to screw into the holes. Finally stuck the screws up through the shelf and turned the house until its floor holes fit over them.

It does seem to be a tiny bit unstable, but now that my 10.5 lb cat is used to it, she doesn't think twice about leaping up or down. I encouraged her to go to the top with some occasional treats or toys (or both) placed on the top level, which is the level most likely to lead to wobbles

Appreciated the $10 discount coupon, which made the price very good. Oh, the faux fur (kind of a low sheepskin pile) looks nicer than clunky carpet, IMO, and seems like it will be reasonably durable.