I wanted a tree tall enough to allow my cats to be able to see over the balcony railing outside. I also needed something with a house big enough to allow my 17 pound cat to turn around in. They really don't use the bottom levels as they jump onto it from the couch arm which is fine by me. Occasionally I'll see my older (and smaller one) jump through the hole to get to the second level but I think she's the only one. Frankly I don't think the bigger one can even fit so she doesn't bother. Overall I am VERY happy with it. The width of it makes it nice and sturdy which is essential for the bigger kids. My only complaint is that it's ivory and I have two dark cats but that's all.