A couple of months ago, flew with my wife and daughter GMP-CJU on KE in business, about $20 more each way than Y. Same beverage service as Y. I did like the domestic duty-free shops at CJU. Weird thing is boarding the a/c (A330s) at both GMP and CJU were through jetways, while disembarking at both airports required walking down steep ramps to the tarmac to waiting buses. A frail Halmonee almost fell down the stairs carrying her duty-free purchases.