This is my best purchase for my cats! They are brothers and are very large and this is the perfect size for them. Only problem was they are a little too big to climb through the bottom hole so I have a little stool next to it so they can jump to the mid level and not climb through the hole. Other than that they love the top levels and the house to sleep in. It was super easy to put together, very sturdy for its height, and eye pleasing. AND they scratch all over it and don't scratch my carpet as much anymore! [...] the price was the killer. All other ones I found like this were at least 50 bucks more. So overall, a great product, great price, great buy!