First of all, having read all the Hell's Rebels adventures, I think it indeed is the best Paizo AP. It's consistent, coherent, doesn't deviate from urban environment too much, has a great BBEG and feels like it was written all by one author (or a group of authors).
Second, I'd love to discuss how people handled situations like the one I have right now, which is having multiple secret identity PCs. Specifically, a Vigilante and a Mysterious Avenger Swashbuckler. We've have had some rough moments during the second session where both "superhero" players tried to keep the secret identities secret from fellow players, but we kind of shaked that off. New challenges arise, however. One player wishes to smash Dottari skulls as his vigilante persona AND romance a Dottari sargeant as his meek barrister persona. Any experiences with having the Scarlet Pumpernickel and the Boy Wonder in one party that you folks could share? :)