Wow! We loved staying at Peter's place. He (and Jack the cat!) were the perfect hosts, despite the fact that they were out of town that weekend so we never got to meet them in person. Peter is generous, hospitable, and has truly thought of every amenity -- we felt so welcome! We have stayed in other Airbnbs that made us feel afraid to make ourselves at home, and Peter's house was the exact opposite of that. He was also quick to respond on the few occasions we needed to ask him something.
Yes, the neighborhood is a little intimidating, but we, as two reasonably city-savvy females, made our way around town just fine (it helps that the BART station is so close). We hope to come back and stay here again the next time we're in the Bay Area!