My cats are enjoying the tower, which seems sturdy and well made.  I give it 4 stars because the packaging was flimsy and the box arrived with several rips.  As noted in the description, the tree is quite heavy.  I had some difficulty getting it in the house and removing the box (although the rips in the box did help with that).  Once out of the box, the tree was easy to assemble in a matter of a few minutes.  So far, the quality seems excellent, and I would consider purchasing another Prestige Cat Trees product in the future.