I am clueless concerning both They Might Be Giants and the opera this is apparently an adaptation of; despite my glaring faults, flaws, and ignorance, I enjoyed this game.
The writing is good. The story is interesting and absurd, in the way that Veeder typically writes, but with a sense of a deeper and more meaningful theme.
The actual mechanics are relatively simple. Although I had a paper and pen out, making notes, it turns out I didn't need any of them at all.
I played several of the Apollo games, and found this to be my favorite of the ones I played. A strong effort around a good story with a minimum of puzzles, this was a successful narrative.