What a great find! Mary is wonderful, she works from home so she is often around if you need anything, as is the lovable ball of wrinkles that is her dog.
The room is more like a private apartment; it's a very nicely remodeled basement with a large bed, windows that face the backyard, a full clean bath, and laundry just steps away.
Mary's spot is within walking distance of "downtown" Ocean Beach and a short drive to downtown San Diego.
I highly recommend staying here. I did for 5 nights.