We decided to stay here because it seemed like the best option for a hostel in Cologne. Despite this we were pretty disappointed. The only issue I really had with the place was cleanliness. I don't think the bathrooms were cleaned while I was there and all the surfaces were dusty; the tables in the common room, and particularly the floors, our bags got really dirty in storage.
Nothing else to complain about, but nothing to rave about either. Not the best vibe in the place, and it's pretty run down.