Marjorie's place was very centrally located to a bunch of cool restaurants and attractions, making SF feel very walkable. Everything was clean and checking in was a very smooth process. She provided a lot of really great recommendations too for food - we'd highly recommend State Bird Provisions, TacoBar, Jane the Bakery, and Sweet Maple.
The BnB is near a major road which makes it very accessible if you have a car but can also be a little loud if emergency vehicles are driving by. We did not notice it at night at all.
Would highly recommend!