This cat tree is sturdy, well balanced and configured well for its intended purpose. The wide and deep perches ( 15" in diameter and 5.5" deep) are perfect for making kitties feel safe and protected during their naps. With that said, my complaint is that the carpeting material is extremely low grade and looks well worn on arrival. Additionally, if you are going to show the top bed carpeted on the bottom (in the picture) then do that as well to the units you ship to customers. This cat tree would have been a home run for me if the manufacturer had invested just a bit more in making a quality finished product. If that had been the case, I would be leaving a 5 star review and highly recommending this cat tree. As it is it gets 5 stars for configuration; and 2 stars for material used. It is, however, a no-brainer to assemble. My suggestion: Under promise and over deliver.