Avoid, avoid, avoid!
Ask Caotains who left for HNA why they left this Nazi's of the east, nothing but a subsidiary of China Eastern, but Xiamen as a city to live a rather pleasant location. I would exchange any job with the HNA group for Xiamen, better hotels, but same old crap with traumatizing Chinese regimental arseholes telling you to shine your shoes, and wear your uniform hat, all in the interest if making $323000 a year flying domestic.