I'm very happy that I decided to stay at Jan's place. Everything worked out quite well. My girlfriend and I arrived in San Francisco after the check-in window, but Jan was able to accommodate our late arrival and she was there to give us a warm welcome and the ins and outs of her neighborhood. I got a rental car the next day after our arrival, and Jan let us use her garage space the rest of our stay. The next morning after our arrival was the last time that I saw her in the apartment, and thereafter our only exchange were the farewell messages. Jan was always pretty quick to respond to messages.
We were also very happy about the location. It's literally one minute walk away from Mission Dolores Park, and just a few more minutes walk from several other cool areas in the city, including Valencia Ave and the Castro, with a ton of restaurants in the neighborhood (we had breakfast at Dolores Park Cafe twice, which is around the corner).
I would definitely stay with Jan again!