Are you looking for expatriate advice in general or just from an American prospective? I am trying to get at what specifically (advice wise) you are interested in. I lived in Vietnam for a year, I know others over there (American and British), others in South Korea, Spain, etc. I also know many from different countries other than the US either living here in the US on a visa (girlfriend) and others living in other countries (not their homeland) on visas.
In short, everybody loves it. Then again, those who decide to get up and leave everything behind generally have a different disposition than those who either never travel or only travel domestically. So, from that standpoint, I think it is unfair to compare the two.