My kitten love love LOVES this cat tree. I now have my own little monkey kitty. Also, the size will be perfect for all stages of his life, even as a grown cat. It is a tiny bit wobbly and when built was the tiniest bit crooked. Against a wall it’s fine. It doesn’t tip over, and the small amount of movement it does make, makes the ball on the top shake. Essentially making my cat goes nuts and take out a bunch of his pent up kitten energy.