Green Tortoise Hostel is exactly as advertised and met my expectations. The location was close to the piers, Fisherman's Wharf, and downtown. It's very easily accessible by public transportation. The staff are friendly and helpful, the rooms are clean, and the majority of the bathrooms were updated and are maintained twice a day, so they are very clean. This was my first hostel experience, and GTH made it a positive one. I'd definitely stay here again if I'm in SF again.