Great book. I would re-read an abridged version.
I preferred Cirano the Bergerac (of the musical books I read), but don't know if seeing we are at SI it's the best recommendation.
1) It was difficult to read, not the language, but the style or pacing. Hugo would leave me hanging and move off for like 5+ chapters at a time on other subjects (Battle of Waterloo, etc). I found myself skipping many, many chapters.
2) I loved Valjean's story!
3) When I finished reading, it was around 12am and I experienced such a profound sadness I had to read something else to take my mind off of it.
4) I'm sure I have more to say about it, I just can't think of it right now.