Finally, a cat tree that doesn't wobble. I needed 2 cat "rooms" and it needed to be nice and tall for my kitties. The lower room is particularly roomy. I don't have huge cats, I have a 10 lb and an 8lb, but once upon a time i had an 18 pound cat and he would totally have fit in the lower room. Now, if your cat isn't particularly into small spaces, maybe your 18lb cat won't like it, but it is very roomy. So far, we've had it a few months now and my cats seem to love it. It's sturdy and it was easy to put together. I've had so many cat trees and many of them are wobbly because they don't have a nice square shaped base and four posts. This one however, is very sturdy. 

It's not carpet material, which i do think lasts longer then this new material, but the carpeted ones are a lot more expensive so i can't really complain. 

Good price for quality and size. I'd buy it again for sure.