Nancy is an excellent host, and the house is lovely. All of the photos and overwhelmingly positive reviews are 100% accurate. I thought that the house was extremely clean and exactly what I expected based on the pictures. Additionally, though it is a shared space, the room itself still feels quite private, and sharing the bathroom/kitchen is easy, in case this is something that concerns you.
Nancy is incredibly friendly and works very hard to make her guests feel welcome. When I arrived, she provided fresh towels, complimentary tea, and space in the fridge for me to keep my groceries. She was also kind and easy to approach with any questions.
I stayed for over 2 weeks and never ran into any significant problem. Her dog Santa is calm and friendly, so even if you are not a dog person, you should not be too concerned. The listing says that sometimes the space can be noisy, but I never noticed any major level of noise. The location is convenient, a peaceful neighborhood with a Safeway and Walgreens just a couple blocks away.
The only thing I would say is that sometimes the room can get a bit chilly, but I suppose that that's just San Francisco. If you dress accordingly, there shouldn't be anything to worry about.
Overall, I don't have anything negative to say and can assure you that the description of the space is accurate. Thank you again, Nancy! It was a pleasure to stay with you and Santa Marie!