Travelling With is much nicer than its location (on the 4th floor of a commercial building, no elevator) might suggest. It's the only hostel in Chongqing with a reliably social bar and common area, populated largely by a mix of international and Chinese travellers. Friendly employees speak English and are happy to help you book train tickets or tours.
Rooms run the gamut from eight-person mixed dorms to comfy doubles with private baths.