I stayed with Karin for a month and really enjoyed it. I would definitely recommend staying here.
Karin is a kind and fun person and I enjoyed our chats we had together. Karin made sure I had everything I needed and kept me update with any people joining or leaving the house.
Her house is kept in great condition and I really felt at home. There are a few places to get food nearby and the whole area is beautiful.
If you're commuting to San Francisco (as I was), you can get a casual carpool there (for free) and one bus back (V). The commute isn't difficult but can take some time.