Put this treehouse together in about 20-30 minutes, very easy.  We have 1 cat, and 5 kittens, and they LOVE this treehouse, they use the ramp, the house...destroyed the toy within 20 minutes, but easy to put another on.  It's very qood quality for the money, the faux fur is very soft, 4 of the cats were sleeping on the top perch together, they actually fit.  It wobbles but is very sturdy, with 6 cats jumping all over it, it hasn't toppled over.  I would recommend this house!