Overall design and style are good but the build quality is below average and nothing seemed to line up during assembly. We had to use spacers between the pillars and platforms to get things level. Another drawback is that the cat house is not solid, it is a tent like setup and has pillars inside of it, which reduces space for the cat. And, the ceiling tensioner is spring mounted, which is not strong enough to keep things stable... There are other tress that have a screw tightened system and those work much better.