We love it and the cat loves it! We had no problem setting it up and it hasn't been wobbly at all. The quality is a 5 but we give it a 4 rating because the opening for the cat to go in is much smaller than we were expecting. Our cat is pretty normal sized, but it's still very small, even for him. Also there wasn't as many toys for the cat on it, so we taped several more on.