I want to save Mario maker as a surprise. Don't want to spoil the fun for myself.
That's fair!
However, I'll add that the thing about the Mario Maker segments that's really cool is they often give you a taste of the stage design process. Like one of them they sort of went step-by-step the thought process that went into designing a couple of the NWC courses. It's pretty interesting stuff, so consider checking those out.