Mark & Lynn were wonderful hosts. We stayed with them for two months and they were very responsive, helpful, and accommodating. We really enjoyed staying in the apartment, the remodeled kitchen & bathroom are beautiful, tons of light in the bathroom and nice marble countertops. Also, a the onsite (and free!) laundry was huge given that coin-op laundry is so expensive in this city. We would definitely stay again at the Hayes Valley flat, or in any other property Mark & Lynn host.