My kids are a bit older at 10, 8 and 4. We already have the 3 GoCoconut couches, which got play as forts and sleeping mats for sleepovers. But when we added a double wall set for each kid, the creative play went waaaay up! Suddenly there were castles, islands with bridges, caves, ships, battles with shields, mazes, and so much more! They play together and individually all the time. Absolutely worth the purchase! Recommend the double wall because it is so sturdy and the design is like lego, where all the different thickness of pieces lined up so well.