Height is nice and lots to do on it. My 8lb cat loves playing on it. He is however a tiny bit too big to comfortably sleep on the top pieces but he makes it work. It is also slightly wobbly when he is up top but thats his problem. I dont see it falling apart or toplling over its just a matter of him being super frisky and making it wobble a bit. My 18lb cat can only sit in or on the bottom hut as he is way to pudgy to climb up top however he is too lazy to play anyways. The materiel definately wont hold up as good as carpet would but you get what you pay for. Overall I would definately buy one again.