We had a really good stay. Synta was really welcoming and gave us good tips to visit D.C. As we were the only guests in the house, she even proposed us to have a second bedroom!
The house and the bedrooms were really clean. The house is located in a really calm residential area. As described, it is not on the center, but close from the metro that goes directly in the center. We had a car and could park it really easily across from the house.
A really good place to stay if you want to enjoy D.C. during the day, and be in a calm area at night!