As has been discussed on here, even Nanchang is not a good place to live and teach, so would you expect the rest of Jiangxi to be any better?

The biggest problem jiangxi has is overcoming the peasant revolutionary mindset and joining the more affluent and developed parts of China in being more progressive and not stuck in the past. Nanchang really has nothing go for it, not many decent places to hangout, and the winters there are terrible.