Len was a great host, was very responsive and had a wonderful place. I was in San Francisco for 2 weeks to do a project, and Len's place was an ideal location for feeling comfortable while on the road. Additionally, when my flight was cancelled and I found myself unable to get a flight for a few days, Len was extremely helpful when I asked to adjust my reservation. The apartment is tidy and comfortable and near several transportation options as well as a short walk to BART. I couldn't have been happier!