I stayed three months on Aliki's apartment and it was really nice. It is just as shown in the pictures. In the first few days the washing machine broke up, but Aliki bought a new one very fast.
It is located in a very quiet area and just at about 30 minutes walking from the acropolis and around 15 minutes from the nearest metro station.
Overall it is a real nice place for either short or long stays, I totally recommend it.