I had a great time staying at Tony's place. It's very close to the subway's NoMa station, which can take you to DC's famous landmarks in a few minutes. The studio has everything you need, well equipped and very cozy. The complementary coffee and bottled water make it even more complete. There is also a manual with information about the house, neighborhood, things to do nearby and appliance instructions.
Tony is a great host, who wants your trip to be the best possible. He quickly answers messages and is always available to help.
I would certainly recommend this place!