Good quality, sturdy.  My cats love playing and hanging out of tube.  Only complaint is the top perch wall is too high and my cats have to rest chin/throat over top of wall to see out, looks bit uncomfortable but they still do go up there sometimes but it’s not their favourite place. The top 2 perches are pretty good size for my Maine Coons but there other trees out there that have bigger for Maine Coons.  It is really high which is nice.