This is an affordable, no-frills room in a great location. You have one of three individually locked bedrooms on the top floor of this two-story house. All three rooms share the kitchen, and your bedroom shares a hallway bath with the adjoining room. These two rooms also share a nice attached sunroom with stairway access to the back yard.
This house is old and very lived-in, but you will have everything you need, everything works, and the conditions are clean, even though somewhat battered. For this price in San Francisco, you can't expect four-star accommodations. If you're OK with that, this is a great option.
Bed was comfy, shower was clean, kitchen was ready to go, groceries were a short walk away. Plenty of room for one or two people, and Earl and his family are kind, rock-solid people.
I was able to park my car once (make sure you don't park where it's restricted to two hours on weekdays) and walk to everything: activities in Golden Gate Park, the grocery store, and neighborhood restaurants.
This is an example of a "good" AirBnB - you're not denying housing to anyone who needs it, and you're definitely helping on-site residents make ends meet in a very expensive city. I would go there again.