She loved it immediately. Even before I got it fully put together. It was easy to put together and she is on it/in it constantly. I havent seen her use the ladder, but this may be because the ladder is a bit small and she is a big kitty. Her favorite spot is the the little house/box on the 3rd level. I put this by my window and kitty feels like a princess! She will play with the mice on it while she looks out the window. Great purchase.