Mary is a true superstar host and her apartment is great. It has more of a small hotel feel than a shared space. The door remains locked and the room itself is spacious (has its own couch and TV). The bed and sheets are exceedingly comfortable. The only negative experience we had was that the room would get a little too warm whenever the heat would kick on at night. Mary was very accommodating when we mentioned this to her, but it did seem to happen on most nights. Opening the window and using the provided fan helped.
Again, I can speak more highly of Mary. When we had trouble parking after 10pm, she moved her car and allowed us to park in her space. She even offered me some of her dinner one night (which I politely declined). You will feel very comfortable and totally at home in this bnb.