Much worse than other Chinese airlines
They are ranked as 5 star airline by skyTrax, but I'd say they not worth 3 stars in comparison to other similar Chinese airlines. Firstly if you're having a connecting flight via China, and if you booked it as connecting flight, expect to still do a baggage collection and re-check in to the second leg flight departing from Hainan. False and misleading information on their website at the time of booking. This hasn't happened with any of Chinese Eastern or Southern Airlines. Secondly, some segments, e.g. Kul-Hai use older aircrafts without any IFE, and only snacks served. Despite being advertised as having IFE on most flights. Choosing a seat is not available until the booking is made, and in some cases you're not allowed to select a free seat, only purchase paid seat at Manage Booking screen. Which again contradicts to what ks being advertised. Some meals, e.g. Hindu is not available on particular flight segments for some reason. Again you'll only find that after the booking was made. Competitor airlines have these most of the time. Customer service is bad,only trying to prove that they are right and that's the rules. Overall bad value for money, and be aware before flying with them.