Sarah’s place was exactly what we needed for our short stay in Washington DC. Comfortable, quiet and cozy plus a minute away from Union Station and two Circulator lines bus stops (Red and Yellow lines; $1 fair; Red line is perfect for turning Washington DC monuments and museums).
Her place was clean and easy to access (self-check-in/check-out). Sarah's response was very quick. I would definitely recommend it and hopefully will stay again.
If you check-in late, there are two vending machines in the basement for something to hold you until the morning.