It takes a very special person to survive working with the Koreans for more than a year.Ditto the Japanese.Polite,honest,hard-working but very difficult for a westerner to acclimatize to their ways(xenophobia due immense inferiority complex).Agents are gutless and powerless to protect an expat.Americans seem to fare better as we have been stationed out there for more than 50 years en masse, but its still difficult to go out informally with a Korean and have a drink.
As regards the flying experience out there,its heavily automated and expats are monitored by their FO's who are under orders to report back.This from an airline that has had 9 major crashes(same as that other bastion of safety CAL).
A job for the very thick-skinned and highly diplomatic and that leaves out a big majority of pilots.