I ordered this because even with the cost of shipping it was cheaper than buying it locally.  When it arrived I was a little worried about the how sturdy it would be since my one cat isn't a normal graceful jumper, he's more like a whale doing a belly flop and frequently tipped the old post.  When I had it constructed it was very sturdy, and putting it together was very easy, even with the cats getting into the house, and trying to run off with the attached toy.  I wasn't sure if the cats would use the top nest, but my jumbo-sized poof (16lbs) has decided that it is an appropriate perch.  My other cat has only left the little house to eat and use the the litter box.  The only downside is the steps are a little awkward for plus sized felines.