This cat condo is well-built, and came fully assembled. The two lower "hang outs" are large enough for a medium size cat, and the top hang out is big and sturdy enough for a larger cat. The top level is also about 3 inches higher than my window stills, so it's a great spot for your cat to look out the window. Overall, the pieces seemed fastened together securely, and this condo will easily support 3 cats.

The main dislike I have is the rather strong "new carpet" odor. It's not overbearing, but it is noticeable throughout the room (13'x12') with the windows open, even after having it for almost a week.

I can't say for sure why - I'm guessing it's the odor - but my cat has shown no interest in this condo, which is very unusual, because he checks out everything new that's brought into the house. I'll update this review if my cat starts to use it.