I really liked Konstatinos s apartment! It's amazing, well located, quiet neighborhood. When you set the address on gps, it's easy to find the street, but the door of the apartment is faced to the church at beside. On my first day, I got off at Kerameikos station, because I didn't want to change line on subway; but, later, I figured out that Petralona is easier. Konstantinos was very kind and he was always available if I needed anything. When I come back to Athens, I'll stay there again, definitely !