Petroula&Giannis where lovely hosts! They even picked us up once we arrived at the center. All kind of Infos about Athens like maps, public transports, restaurants, etc. are ready for you to take in their apartment. It's close (15m walk) to The Akropolis and the city center. 3m to take the metro and 3 very close supermarkets. It is a silent and safety neighbourhood. Both are ready and willing to explain everything you might want to know and they always replay very fast.
Thank you both for everything!