I've had this cat tree for 4 months now.  I wanted to wait to review it until I had it for some time to make an honest review.  I have two cats (6 months old now) and they have loved this cat tree from day one!  The scratch posts are a life saver for my furnature and they enjoy the hammock.  The boy cat, Pete, is getting to be a pretty big cat already but he doesn't have any issues with the tree.  His sister, Repeat, LOVES the hammock and especially enjoys climbing to the top to get a break from the kids. I haven't had any problems with the cat tree. I've only needed to tighten the bolts once since I've bought it.  It still looks brand new and, considering all the time my cats spend on it, that's saying a lot!!!