Easy to assemble. The height allows a cat to stretch fully and scratch, with room to spare. My cat took to it instantly, scratching and climbing, and she enjoys just sitting at the top. I place toys on top for her to retrieve, which she enjoys, and I also sometimes put it on its side for a change of perspective. She has an assortment of diversions which are rotated so that she doesn't become bored. This scratching post is constantly available to her, obviously, and she doesn't tire of it but now takes little notice of the attached plastic ball. Highly recommended.