Members of the group I used to work for traveled to some far-flung parts of the globe. I never got to do so (with them), but a few of my sympathetic colleagues brought back little treasures for me.
From the tales that were told (and from a few of my experiences with other non-"western" airlines), I know that the standard of service with these featured airlines isn't quite what you might hope for from an American or European airline.
(Since we returned to the States a little under a year ago, I have been slowly going through treasures to reduce my load. I can't keep everything! And sharing them with you lets them last a little longer before they go to the place where they can never be recovered.)