I had a great experience staying at Dawn's home for the semester. The location is in a nice neighborhood - about a mile from the Silver Springs Metro Station (Red Line) and a 2 minute walk to a bus stop that takes you to Federal Triangle. The house is clean, spacious and furnished well. My room was pretty big, had a lot of storage, the bed was very comfortable.
If there is ever an issue, Dawn is quick to respond. She's wonderful to talk to about things to do in D.C. as well! I stayed with two other students during the semester and she always made sure we were safe and well. Great option for long-term housing!