I stayed for a week at Iro's apartment. It's a very nice top-floor apartment and no other neighbors on that floor, so very quiet. It's very spatious, full of natural light and has two balconies on opposite sides. You can see all Athens from the balconies, Filoppapou hill and the mountains. The neighborhood is very safe with nearby big supermarket and metro station, but you can walk if you want to the Acropolis as it's around 15 mins on foot.