So after reading all these impressions, it's basically just a fancy looking level browser? :D
That's what most of us really wanted to begin with, I think. Sure, there are fancy things the actual games use to spice up the world map, but that would only have been a bonus. Creating a "campaign" is what this is all about, even if it just means stringing together levels. Being able to create a context around the levels is what it's all about. Hell, this is going to make me create my first water level, which I wouldn't have done if it was meant to be a standalone level.