Samantha's place is awesome. Its spacious, in a great location and has a washer and dryer if you are staying in DC for a bit. The place is right next to Whole Foods for groceries, and lot of restaurants just down the street. It's very easy to get to the National Mall, there are subways down the road, or we rented bikes/scooters and the street has protected lanes so its very safe and easy to get around.
The place was very clean, and had everything we needed. Perfect for a couple staying in DC and trying to explore the area.