Part of the difficulty, I think, may be the mismatch between how Luna represents a piece of code and how I visualize it in my head. Is Luna going to draw a line between some related things when I would rather see them, say, in the same color? Will it show an arrow pointing from a data source to its destination, when I would rather see the destination pointing to it's source?

My worry is that Luna's visual model of the code will not match my mental model, and the impedance will be too much to overcome.