It's a single family home, where they converted many spaces into "rooms". It was more like a hostel or motel to me. Lina was very sweet, she showed up early for my check in, and kept the house very clean.
If you want to stay here I highly recommend one of the two upstairs bedrooms. I stayed in a private room on the first floor and it was too noisy for me. It was next to the bathroom and kitchen. There were lots of other guests up at all hours of the night.
The bed was pretty uncomfortable as well. It crunched like it was wrapped in plastic with every move I made. And the pillows were very flat. My neck hurt every day and I did not sleep well.
You get what you pay for. If you're only staying one or two nights, you'll probably be happy. I stayed from Thursday to Monday and it was too long.
Side note: The house is only about 12 minutes from the airport which was extremely easy and nice. It was about 30 minutes from most tourist stuff up in the city center or at the piers. Muir Woods (Redwood forest) is an hour away, north over the Golden Gate Bridge.