I would highly recommend staying with Jason to anyone passing through SF who is looking for a clean and hospitable space in a central location.
My travel companion described our experience with Jason as staying with the best friend you never knew you were missing. Jason is kind, has a dry sense of humour, and is wonderfully communicative. His recommendations were on point: thoughtful, and honest.
The space was clean and inviting: peaceful and restful, with as much/little interaction as you desire.
Overall, it was a wonderful stay for my overnight girls trip in SF.