For anyone at crossroads in their life or young enough not to be bogged down yet, a job like this would be a an awesome experience.
I spent a year in Japan 6 years ago and having travelled to China 3 times now for business and holidays, it would be my pick of places to live.
It's amazingly diverse in weather as well as lifestyle, a few hours on the plane can take you from one of the worlds busiest cities, shanghai, which financially appears like any western country, to many places where time seems to have stood still for 500 years.
Whoever takes this up will have a life changing experience. As for girls, if you're youngish and at least average looking you'll feel like a celebrity every day.