Well worth a second playthrough

[Ossie]

I don't know how well the replayability is, but surely, by watching LPs, there are quite a few bits of the story that became clearer to me.

Most definitely - often things are clearer when you're not the one 'experiencing' them. I would heartily recommend watching Gopher's LP - it's so good to see somebody taking their time, reading all the notes and getting fully immersed in the game. Unlike many LP'ers, Gopher makes the LP about the game, and not him.