My cats love this cat tree. We have 3 cats that range from 11 lbs to 15 lbs and they move around and fit on this tree beautifully. They are regularly on it at the same time and it holds up well. It was easy to put together and all the parts were present. The top basket is a favorite of my big, orange girl. She weighs around 11 lbs and you can see how she fits nicely in the basket at the very top (see picture). I used one of the carpet "washers" to secure the top basket even further and after almost 2 months, it and the entire tree has held up well. It is big, though, so have plenty of room!