It was a wonderful stay, better than I ever expected! I visited DC with my mother and grandma who came all the way from China, and I was worried that they may not feel comfortable staying in one's house instead of a hotel. It turned out to be a really enjoyable experience. My grandma said "what a nice home!" at the first glance of the place; she loves the house's atmosphere as an old warm family house. It was more than comfortable staying there, we have the whole second floor with two bedrooms and a separate private bathroom. Dan and his partner were great hosts, sharing with us both their amazing family stories and the useful trip/restaurant tips, even if we speak broken English. Plus, it is a wonderful surprise to know that Dan's mother was one of the founders in my research field. Very inspired by our conversation!