personally i sat on china airlines- i was extremely skeptical however the service was so attentive... my flight back- i sat one seat away from a lady that was profusely coughing so being the kiasu me I wrapped myself up the entire 4 hours with a scarf and mask. What touched me the most was when her sister moved to an empty seat, the stewardess encouraged her as well but she did not want to. The stewardess then offered me warm honey lemon water she said that it will help with my immunity. Love them! Highly recommend!