There is no hostel to beat Pacific Tradewinds in SF. The place is small, cosy, and the flights of steps up to it build a sense of anticipation (and one's leg muscles too) that is well rewarded. Run by an extraordinary number of people all with the name Dave (even Shelley is a Dave at heart)it is the perfect place to relax in good company and secure helpful bits of information, even if your name isn't Dave. Dave, the owner is clearly the Repository of all SF Knowledge. Top marks.