My wife and I had a wonderful stay at Midori Boutique Hotel in June this year. It is in a great location that allows you to experience life in Hanoi, with its bustling street life and character, but without being in the middle of the main tourist area. You can walk to the Old Quarter and Hoan Kiem lake if you like, although a taxi is a very cheap and convenient option should you prefer. The staff are all very friendly and helpful, and the Vietnamese breakfast (their pho is fabulous!) is a wonderful way to start the day and keep you going until lunch time. Our room was very generously sized, comfortable and clean, and with double glazing it was very quiet and cool. There are some great places to eat and drink nearby and a good coffee is never far away. We will definitely return when we next travel to Hanoi.