The Cardozo Guesthouse is a beautifully decorated home very close to lot of happening spots in the city. Metro is 2 blocks away which made it very convenient to reach the national mall area.
All the instructions such as location, entry/exit, utility usage were very clearly mentioned everywhere to avoid any confusion.
Also, we were able to keep our luggage till our flight time in the evening.
A must stay if you are in DC.