Haven't seen THTGW yet. Sounds like a safe choice to see an enjoyable show.
I was impressed the two times I saw Bandstand at the way it grabbed the audience emotionally in the second act, culminating in the enormous roar for the 11:00 o'clock number, "Welcome Home." But I guess only about half the audience was producing all that noise, since the show never developed any word-of-mouth business.
Fans might want to check out the Playbill Popup video, with about a half hour of discussion in between some musical numbers. The cast seems to be taking the attitude that, despite the lukewarm reception in New York, the show was validated by all the emotional encounters that they had with real vets. Also talk of a national tour.
Discussion of "Welcome Home" very interesting. It was extraordinarily difficult to perform and sing. Laura Osnes said that she dreaded the song at first and was terrified by it. She came to accept it, but can't see ever performing the song out of context. They wanted to add another modulation (I don't know what that means), but she nixed them, saying that she was already shouting as high as she could.
The actor who played the trombone on stage had never played the instrument before cast. Far from reading music, he was given numerical slide positions to memorize.
Lin-Manuel Miranda saw Bandstand and, among other praise, called it the "Best jazz score since either Jelly's Last Jam or City Of Angels, take your pick. INCREDIBLE score" But that's what you would expect him to say.
Good for Broadway that it would find a place for this quirky musical with a message and with such a young and ingratiating cast.