We had a great time staying with Mario and Junior. The room is comfy, parking is easy, the neighborhood is fantastic (quiet and residential but still lively) and our few interactions with Mario and Junior were lovely. Mario recommended we catch a sunset at Bernal Heights Park, a fifteen minute walk from their place, and it was spectacular. They also let us store some things from our overstuffed trunk in their garage. If you're in SF this is a great place to stay!