Great for all children under the age of 5-6.  My daughter is 2 and a half and she loves the clubhouse.  Her cousins, who range from 2 -5, come over and play and they enjoy it just as much.  Easy to assemble, took just under an hour or so, make sure you have an electric or battery powered screw driver on hand, and make sure the screws are secured tightly.  I would recommend this product for anyone thinking about an indoor or backyard climbing, clubhouse, or swingset addition for kids 1-6.  They will play on it for hours, endless possibilities and their imagination can run wild.