I have 5 cats and they couldn't wait to use this product! They were in the box while taking it out and were on it before I could even get it put together.  There's always at least one of them on it! I have a little one that loves the baskets and the bigger cats love the huts and large landings.  My only complaint would be that the middle hut is hard to access and the right hut is hard to access for bigger cats with the ladder in the way but we just moved the ladder over slightly and it works great! I was looking for a tree with a large base as I have vaulted ceilings and cannot connect it to the ceiling for support.  This works great and is very sturdy even without the support up top! LOVE IT!