I have 3 cats that constantly interact with this tree. It wasn't as easy to put together as they make it sound. You should definitely use a measuring tape because the parts aren't labeled. I have 2 girl Siamese that have grown up with this tree, they race up and down like the Devil's on their heels. The tree wiggles a little but it's standing up to the abuse. The greenery you can get at Wal-mart for a couple of a bucks.  They did tear the mouse toy off within a couple a weeks and the leaves aren't as luxurious as they once were. lol 

Pros: Durable, Interactive
Cons: Difficult and time consuming to put together