Absolutely love it so do the cats haha. Took me about an hour to put it together but I’ve a splint on my arm so took me a little longer than it should have . I have 3  it’s perfect for them I’ve a 3 year old male who loves the bottom box I’ve a 1 year old female who loves the top  I’ve a 3 month old kitten who loves well whatever part he can manage to climb on too . Best purchase for them so far  I can tell it will last years thanks Wayfair  from 3 happy cats  1 happy human