The room is extremely clean. I had visited Boston for a few trips, and this place is the cleanest I had ever stayed! It was also well equipped with air conditioners, fan, lamps, TV, refrigerator and microwave.
Mary provided detailed instructions and reponsed quickly. She actively asked if I felt comfortable while staying there. In addition, she helped me in problems of booking via Airbnb (at that time I was not her guest, she didn't have to do so).
The location is a little bit far from Cambridge, but quite close to downtown and South Station. Around the house, there are bus stops, restaurants, CVS and Walgreen within 10 mins of walking. There is a Blue Bike station with 2 mins of walking for who loves riding like me! Sometimes I took Lyft, Uber cars and there were many drivers around. Thus the location is good enough to me.