I just spent a great week in Stam & Chris' place - the Acropolis view is something you won't easily get tired of, the location is perfect for exploring Koukaki and the Acropolis surroundings by foot, there's an elevator and a bathtub, and a supermarket and a delicious coffee shop right around the corner.
The building and the apartment appear a tad dated, but it feels authentic (and probably says more about my spoiled northern european point of view than anything else). Communication with Iro before and during the stay was smooth and very friendly (even when my plans didn't work out exactly, she was understanding, flexible and going out of her way to be helpful), I'd definitely come back if I wanted to stay in this part of the city.
Thank you very much for a lovely stay!