I've owned a lot of cats who have enjoyed a lot of cat trees, but I've never hit the perfect match between the two until now. I was worried about the stability of this cat tree because of its height, but turns out it is not a problem. My cats are 12lb and 10lb and they fly up to the top and down again. Since the base is relatively small compared to the height, the tree does sway. But, I've learned that that's a good thing. My previous cat tree had a wide solid base holding up posts & perches. As the weight of a leaping cat landed on those perches, the posts began to bend over time. This cat tree moves as one with the motion at the top. This does NOT put a bending pressure on the posts. My cats leaped up on it while I was putting it together (very easy assembly) and have not stopped using it. Plus, I prefer these products since they are covered with Faux Fleece (like sheepskin) rather than Faux Fur (like cheap slippery fabric). Much softer and cat-friendly. Extremely pleased.