Ron is a really great host. This is the second year we go for a conference and stay in his place and we would still go more times. He is always happy to lend a hand, provide solutions and he is great with the check-in.
The house is also very nice, calm, comfortable and warm. I found it nice to prepare the presentations there, it really feels like a home rather than a dull hotel. The house is also far away enough from the center to disconect from streets fool of people, but close enough to be in San Francisco's heart in about 25 minutes (walking and then bus).
In summary, a very worthy place to stay.