Vietnamese hospitality
Hanoi is a much quieter city than Ho Chi Minh City, but there is still tons of traffic. That's one of the things that strikes you first when you take a tour around the city. The streets are filled with people, cars, motorbikes, noise, street stalls, women unloading food, and more. It's a beautiful city where I wouldn't hesitate to live, especially when you take Vietnamese hospitality into account.