Definitely make at least one exploratory trip first. See where the in-laws are living - middle class local families conisder it normal to fit 3 generations into 400' sq.
Check out the environment - unless you can be self-employed or work from home, the usual pay-off for living in a relatively green area would be a long commute to the office. Air pollution is an issue, specially in winter - the rest of the year it's the humidity.
Have a look at the prices of western groceries and western restaurants - 99% of what we eat here is imported, and it shows (along with local rent levels) in the prices. Or how prepared would you be to return to your roots and eat local long term?
I'm not saying "don't come and live here with a family", but it's true that the grass looks greener on the other side of the fence wherever you are, so you need to move - or not - with your eyes wide open.