My mother and I visited Xiaozhen's place for a place to stay while we toured one of my graduate school acceptances, George Washington University. Her home is situated in a great location, a short ride to the downtown area of Georgetown and the greater DC area. Xiaochen was so accommodating for our arrival and check-out times. We arrived earlier in the mid-morning and were able to just drop our bags and run to my college tour and appointments. She let us check-out late so we didn't have to drag our bags around the following morning until our train ride out in the afternoon.
They definitely made the most of the small basement space available with a well decorated finishing touches! Couple things to note, the bathroom door has glass windows so hopefully you are traveling with people who are very familiar with or can make sure that they stay in the bedroom if you are more on the modest side. Also be aware that since it is a basement apartment in an older home that it can be a little bit noisy as walls and ceilings aren't insulated like they are in the newer homes these days. It wasn't a bother when we were sleeping, but we could hear a lot of action in the evening and morning before we set out for the day. Other than that, it was a wonderful stay in the DC area!