We had a nice stay at Pension George. Helen was a wonderful host, so friendly and helpful with everything! Also the rooms were clean and comfy and the whole area very peaceful. And thumbs up for the pool! Karterados itself is a bit far away from everything so I'd recommend renting a quat/car for moving around the island. And the walk to Fira from the pension is actually more like 30 minutes, not 15-20.