This was very easy to put together; pay careful attention to the directions and put the different heights of poles in the right place on the bottom layer.  My cats ignored this for a couple of days when they were adjusting to being moved 900 miles via a 2 day car trip and getting used to a one bedroom apt. instead of a large 2 story house. They love to take naps on it and I'm getting them to scratch on it instead of the rugs and furniture. I think they're going to use it more and more as they become accustomed to it and their new home.