My cats absolutely LOVE this tree!  It was easy to put together, took very little time, and it has everything that we need for our kitties to be happy.  We have three cats and they have plenty of room on this tree to all have a place to sit or hide and play.  We have it staged right next to our patio door so they can see outside and enjoy the sunshine.  It is a wonderful addition to our home.  The only downside is how easy it was for the cats to take the little balls down.  In less than a week, they are gone.  None the less, a great product and I would recommend it to anyone who has a multi cat family!