Yes Vietnam is the best place to visit for food and site seeing. I was there last year for 3 weeks but did not have interested in the rep.
You should make a trip up north to Hanoi to visit HaLong bay, while you are on the boat you can purchased freshly caught seafood and have
them cook right on the boat for you. Cold Tiger beer is much better than Heniken beer.
Vietnamese hospitality is the best on the world. Enjoy your trip Flex.