My cat is constantly playing on all levels of this cat tree. She gets so much exercise with this cat tree I don't think it could get any better. I have it in my bedroom, and my cat takes naps on the cat tree, she sharpens her nails on the cat tree. It is super durable. I like that it is a heavy weight so I don't have to worry about it tipping over when she is on one of the higher levels. I feel that this is a great investment for anyone with indoor cats.