My 2 yo and 5 yo spend some much more time outside now since we purchased this set to play on. Even my 10 yo gets on it now and then but he really is too big for it.  It was easy to put together (except for the last step) and had it completed in about an hour by myself. It was a good investment and gives the kids hours of fun in the back without us having to go to the park all the time.