I stayed at Richard and Hannah's place for more than three weeks when I first moved to DC. Everything was perfect. Sparkling clean, very comfortable, nice touches for the details. The neighborhood was quite safe and friendly unlike what some websites or online 'rating' nonsense suggested. There is a mall very close with a super market etc... Also a CVS and a grocery store, which are even closer. The place is also close to downtown DC with a 30 min bus drive (40-45 during peak hours, 10 mins with Uber for $14). Only down side is lack of direct metro access but you have free tram until Union Station and can access the metro line from there. There are many nice restaurants and bars on the H Street which you should visit. Korean, Japanese-Taiwan, Pakistani, and many more are all in the walking distance.
Richard was really a super host. He responds very quickly to guest's questions and he was really helpful every time I had a question or needed something.