The location is really great. 3 min walk: the Acropolis, the bakery (Takis Bakery), souvenirs. 5 min walk: the supermarket (My market), pharmacy, restaurants, and other nice and useful places. I felt safe in the area.
The apartment itself has 3 rooms, tiny kitchen and the bathroom. It was very convenient for us to use washing machine, heating and wifi :)
What we were struggling with was the lack of shower curtain and high humidity in the bathroom (no ventilation) - but it was January so probably it is not an issue in the summer. Andronike is very helpful and responsive.