"Quiet Street right next to great restaurants and culture"
This is a lovely street, near parks, fun, the National Mall. Transportation is great, as you are walking distance from two metro stations, and the busses go right in front of the house. If you were to walk a few blocks north, you get to H St, which is bustling with culture, theaters, bars, etc. Go South to Barracks Row for some more great restaurants, shopping, etc. A bit pricey, but safer than much of DC, and walking distance to all kinds of good stuff.