Not very large, but convenient and even "cozy", one can say, the airport - at least from the point of view of a Russian tourist: there is almost everything you need, everything is conveniently located, and on the signs - in addition to the Vietnamese, English and Chinese proper, everything is "duplicated" in Russian" (which is very nice!..); Russian is a rarity among the staff - but in general, everyone is friendly, polite, "contact"/"creative", and in terms of communication language, modern translation programs on smartphones help out perfectly!
A convenient airport, small, with clear logistics. On the downside, prices are high in cafes and shops after the inspection area, on the plus side there are free fountains with drinking water, you can put it in your bottle on the plane.