AdvertisementTravel newsTraveller letters We worked out why so many restaurants in Vietnam have great reviews Each week Traveller publishes a selection of rants, raves and travel tips from our readers. Share A A AViet scam Restaurants in Vietnam often offer inducements in order to get positive reviews. After a couple of good, but not great, meals in Hoi An (a Google score of 4.9 based on 2500-plus reviews, hello? iStock I read with interest the recent praise for China Airlines (Traveller Letters, July 11). iStock I wholeheartedly agree with Alan Pead’s comment (Traveller Letters, July 18), that Istanbul Airport has zero customer service.