Very happy with this enclosure, assembly was straightforward, size is great for my kitten, love the height. Like other reviewers I covered the stairs to make them more comfortable to walk on. Sturdiness seems fine but I have still attached it to another piece of furniture to keep it from sliding around. Not sure if kitten will use the hammock! I especially like the doors compared to other cages on the market, and the fact it’s on wheels. Best value for size I could find.