Of course our cat Jasper had to play in the box but once we got this put together he jumped right on it.  He is a little large for the hammock and the basket part but since we are in the market for a kitten I'm sure every part of this cat tree will be used.  This is the second tree we have purchased from you and the other one is on our front porch for the outside cats that adopted us three years ago.  They are very sturdy, easy to assemble and I think a great deal for the price.  I also love the fact that you have replacement parts to purchase.