All depends on what you define as a holiday.
To some its experiencing a culture, a different way of living etc
Whilst some prefer buffets, outdoor sports & privacy
If you are looking for a white-mans holiday retreat, I don't think Vietnam would fit the bill.
Although I did a 2 day stay at Sheraton hotel in Vietnam. The days consisted of 5-star accommodation, buffet dinners & snorkelling the coral reef. The experience felt cheap & tacky and couldn't wait to go back to the real Vietnam