Yeah, I was surprised to see Mommy Dearest in the Enchanted Post-Apocalypse, since it seemed that she had preceded everyone to our world.
I liked the addition of the identity barrier to leaving the town. It keeps everyone in Storybrooke, but it's more clever than a force field or tricks of fate. It brings it down to a personal choice. And it created what looks like a nice little subplot about the six dwarfs on a quest to save Sneezy.
Also good was the characterization of Regina-- she seems to have realized that she has become what she hated. I wonder where this will lead. And Rumpy doesn't like being trapped in Storybrooke. Neither of these characters are thoroughly evil, especially now, and that's what makes this interesting. There are no villains-- only characters in conflict.
Man, poor August. What will become of him?