Very easy to assemble, and my cats like the tower almost as much as they like my worktops and doors. I find the quality to be better than expected and the scratching posts are good as they can scratch and climb at the same time. My cats are small and thin - so platforms are a good size but I don¡¯t know if bigger cats would fit! Great product, excellent price and fast delivery, I¡¯m a happy customer!