Sort the visa paperwork before you think about anything else; that's the one step in this trip that can't be rushed. Once you land, Pudong does its job well enough, English signage, decent duty-free, though immigration lines test patience at peak hours. Fly in from Seoul and you're barely airborne two hours before touching down for USD 150, which tells you something about how well-connected this city is. November brings fares as low as USD 180 and skies clear enough to make the Bund worth every yuan spent getting there.
