The country has worked hard to pull itself out of the horror of war, and has remade itself into a destination that many digital nomads will find attractive for its preservation of ancient traditions and delicious food.
Vietnamese is the official language of the country. Due to its past, you're more likely to find locals who speak Russian or French, rather than English. Be sure to carry a phrase book with you, or a translation app on your phone.
Cost of living in Vietnam is exceptionally low, by western standards. Private rooms can be had for $20/30 USD per night, while dorm beds are often under $10. Food is cheap and delicious. A large bowl of pho, a traditional Vietnamese soup, can be found for $1-2 USD.
While internet is available in most hotels and hostels, it may not be the most reliable. It is highly recommended to carry a mobile hotspot with you, and pick up a local SIM card to ensure you always have data.
Not only is the local food incredibly flavorful, but it's cheap too. Pho soup is a can't miss while in Vietnam. You can also find a wide variety of street food, like banh mi sandwiches, for cheap throughout the country.
The official currency is the Vietnamese dong. The dong is especially weak against the dollar, which makes traveling the country particularly budget friendly. Credit cards are not commonly accepted, so be sure to keep enough cash on hand to get by.
Vietnam is a mostly tropical country, but venturing up north the weather is often cooler and less humid and than its coastal and southern counterparts. The rainy season runs June to November.