I never really thought about how it played to non-Americans until this thread.
Anyone asking about it in this thread is, I assume, a theater person. And for lovers of theater a good show is a good show. So I would recommend it regardless of where you're from.
Aside from how the show plays as a whole the score is amazing.
I agree there isn't one bad song, although I do the same thing as Growl with Mama, Look Sharp when listening to the OBCR.
This may be a stupid question, but has this ever been staged in the U.K.
....but the world goes 'round