We had a great stay in George's apartment in Athens for 3 1/2 days! The location is great - only 5 minutes walking to a square with many nice restaurants and a metro station, just 10-15 minutes to the Acropolis. The apartment is as described: nice balconies, spacious interior, WIFI, air condition in living room and bedroom. Large kitchen, bathroom and of course an elevator (it's in the fifth floor). We met Olga (George's cleaning lady) in the apartment; and although she doesn't speak any English, she was able to show us the most important things. She was really nice :-) We kept email contact with George during our stay and we always had a good feeling that he was there for us.
Only point is that the shower was spraying water in all directions except on the person in the shower, but that can be fixed quickly ;-)