I bought this for my 3 year old for Christmas. She can create some things herself, but mostly I make them. But she loves to play with him. I haven't tried it with Duplos yet and will update my review here. Also, the colors of the parts don't necessarily match the diagrams. I would say, especially for older kids, that it would probably be more fun if you bought a second set and had a few extra duplos to build with. I would also like them to provide some more diagrams for other tracks you can build. I think when she grows up a little they will find more use. But I'm still happy with the purchase. Might have to buy another one!
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