The Green Tortoise is such a fun place! Clean rooms, easy check-in, great vibes from staff and guests. Totally recommend for an affordable option for staying in San Francisco. **While airbnb was super easy, I would recommend booking with the Green Tortoise through their website. It's cheaper because they aren't having to go through the third-party site, plus the hostel gets 100% of the money. If I had known, I would've booked independently. SUPPORT YOUR LOCAL HOSTELS!!!