We had an incredible trip to San Fran, made all the better by our hosts. They were easy to communicate and flexible with from the beginning. They were very welcoming and there were even extra personal touches in the room (books I might enjoy from the host -a midwife - as she knew I was pregnant). Everything was as described and the location was perfect for getting around public transportation, with plenty of fun in the surrounding area if you didn't wish to go far.