XiamenAir typically offers Business and Economy cabins (with First or Premium Economy on some widebody/long-haul routes). Cabins differ notably in seating, catering, baggage allowance and mileage accrual.
For short routes economy is usually the best value; on overnight or long-haul flights Business meaningfully improves rest. Watch for upgrade offers with miles or cash around check-in time.
Product-wise: XiamenAir has anchored the Fujian market for four decades, long famous for its all-Boeing fleet, reliability and service awards. A SkyTeam member, it connects Southeast Asia and long-haul destinations via Xiamen and Fuzhou.
On loyalty: Egret Club members accrue miles by cabin, and elite tiers add seat, baggage and lounge benefits — worth joining if you fly XiamenAir often.