Wonderful place in DC. 5 minute walk to metro, 30 second walk to groceries at Trader Joes, 2 minute walk to M street restaurants and shopping. Stayed with my wife and 10 month old child for a week. Never had any problems navigating around town or finding our airbnb. One of the prior guests had likely inadvertently turned off the emergency switch on the heater. I sent Mark an email at 2:00am. He responded within an hour, personally came to inspect the issue first thing in the morning, and had a mechanic there within hours to fix the issue for good. Wonderfully responsive. Nice, tidy, clean place exactly as described. We would book again next time in DC without hesitation. Never had any noise issues with neighbors. Safe-appearing neighborhood to walk around at night, even with a young child.