This is a nice, large tree that our 2 cats (about 13 pounds each) love!  It arrived quickly and was easy to put together.  (The cats enjoyed the box it came in while we were assembling it.)  They play on it everyday and it is quite sturdy, and looks nice, too.  The squishy sides on the top platforms were folded in when we first set it up, but over a few days the cats got them shaped out just the way they wanted them.  The lower "house" is large enough inside for our big guys to stretch out and nap, not just curl into.