Assembly was extremely hard and time consuming. One of the climbing platforms was missing the sleeve that the pipe needed to slide through for stability. My husband rigged it with 2 zip ties because we were not going to tear it all down and replace it to have to start all over again. Other than those two complaints we love the tower. The cats are really enjoying it. It’s pretty sturdy once completely assembled even though all of the base is plastic. I think it’s worth the money. I gave 3 stars due to assembly issues and because of the defective piece. Would have given 5 if not for those issues.