Lonely Planet '99 says:
"In the fuzzy zone where Chinatown descends into the Financial District, the Pacific Tradewinds Guest House (Map 5; Tel. no. 415-433-7970), 680 Sacramento St, is the friendliest of the city hostels. This well-maintained 4th-floor hostel has bunks in dorms - no private rooms - and there's a fully equipped kitchen and guest room. It's a great place to meet other travelers, and the hostel's owner, Darren Overby, is a wealth of information on the city (he also keeps files on travel tips to other cities). The rate is $16, and the maximum stay is two weeks. To get there, take a No 1 bus from Spear St or Drumm St, near the Embarcadero BART station, up Sacramento St."