My stay at Iryna's house was perfect. Not only are they extremely nice and welcoming people, always ready to give you good tips about the area, but their house is very nicely located on the top of the hill (great view: the ocean on one side, the SF financial district and the bay bridge on the other side).
Room is very clean and has a private bathroom. And there is a small desk where you can put a laptop if you need to work.
Street is very quiet and you can park in front of the house.
Very convenient location if you plan to go both to downtown San Francisco and to the Bay Area (close to 280). To go downtown a good option can be to drive to the Daly City Bart station (8min) and park there. Then the Bart takes you to the center of SF in less than 15 min.
I would definitely recommend this address!