I gave it 4 stars because the 2 platforms that extend out above the hammock could be better ( if nothing else 2 legs with rubber stoppers on them for extra support, I may add that later if it looks like it needs them). My cats love it, we have 1 cat that is a wild child, he launches straight up the sides, leaps into the center full speed, he shakes it good. It is stable, no fear of it turning over. The perches are also bigger on this 1 than any of the others I checked on so they have more room to curl up for a nap. Since we have gotten it they tend to sleep on it more than coming into my bed and waking me during the night.