Wow, we absolutely LOVED this spot! The apartment itself was impeccably clean and perfectly outfitted for our 5-night stay in DC. It felt like a historic building, but the apartment had a perfectly modern feel. The "horse walk" leading up to the apartment was very cool too. It was a close walk (about 5-10 mins) to drug store, general store, Trader Joe's, restaurants, bars, pizza... (We The Pizza had awesome pizza for our last night in town). The Capitol was a 10 minute walk away (or less). The neighborhood itself is very quiet and cozy/historic feeling. Carrie stopped by on our first night in town - super nice and she wanted to let us know she was available if we had any problems.
Of all the Airbnbs I've stayed in, I think this was my favorite! Highly recommended!