I and my wife has stayed at Derrick's place for more than a week. First of all Derrick is a great host.
The Manual for his place is very detailed and informative both about the place and it's neighborhood. We didn't need to ask him anything that was not clear. He has communicated with us before our arrival in DC, during our staying and before our leave. The place was at a really perfect location for us and it was close to almost everything we wanted. We were able to either walk or run around most of the places we wanted to go including museums, monuments, restaurants, consulates, and neighborhoods. We were only a few blocks away from DuPont Circle metro station. Size of the house was perfect for two people. It has a great kitchen but we don't need to use it much because of so many great dining options were available in walking distance. We had everything we needed was provided. I highly recommend Derrick's place for staying in DC either for fun or business, or both as was for us.