I had a great stay at this hostel. Receptionists were always nice and willing to share some time with the attendees, setting up barbeques, games and happy hours.
People coming to this hostel are the best, made awesome new friends, all willing to share some of their time and make plans for the day, and even sharing some beers in the terrace of the hostel (which were the best priced deal you could get in Prague).
All my best wishes to the beautiful people of Elf Hostel :)