My grandson loved building the different with this set. He really enjoyed the go cart that was pictured on the outside of the box. I was skeptical that you could really build 30 different things with this set, it didn't look like there where that many parts in there but he fooled me. He hasn't quite gotten up to the 30 but he is getting close! What I love the most about this is that it is getting him to use his mind and imagination and it doesn't have anything to do with TV or Video Games. What a great way to get children to think and plan and see it come to life. I believe this will be a great learning tool that I hope helps him in school to learn how to solve problems and that it's a lot more fun to work with your hands instead of sitting in front of a TV all the time. We will be getting more of these in the future.