Overall I am quite disappointed with this cat wall. The shelves are very small and my cats have a difficult time navigating them, even our youngest cat who is barely a year old. I also had to go out and buy the hardware to install it as the the screws and anchors for securing it to the wall were the wrong size, they stuck out from the wall by almost an inch after being fully inserted. I don't think the screws provided for the shelves and their brackets were the correct type either, they were a bit small and flimsy and on two shelves the wood just splintered around them. We had to remove the hammock, I don't know if it was the intent but it was purely decorative and far to small to be used, even by an 8 lbs cat. Overall, it looks very nice, what it lacks in functionality it makes up for in decoration I suppose. The cats get some use of it and it's better than not having the vertical space, but I am disappointed with the design and quality.