This is a well made product and fairly easy to assemble. I would have given it 5 stars, but in my opinion - the instructions could have been printed larger and with more clarity. Putting the cat-box-section together was confusing and the print was so small I had to use a magnifying glass to see the direction arrows, print, etc.  The rest of it went together smoothly and it seems to be very sturdy.  If you're looking for a cat tree, I would recommend it.