Mark's house is extremely well located, just steps from Dupont and Adams Morgan. It is a very nice house, with several rooms for rent. Some rooms are better than others - I was lucky enough to stay in the top front bedroom which has plenty of light. Communication with Mark was very smooth. I initially thought I would have to change room halfway, but Mark was very accomodating in trying to find a suitable solution, as I was not keen on the alternative bedroom. Cleaning could be improved. Mark is an interesting and friendly host, and I would consider staying again.