This review has two parts: INSIDE THE FLAT: It is a really confortable, clean, tidy place. It seems like a hotel room with a big bed and high quality linens and towels. It has everything you would need to spend a nice stay in Athens.
OUTSIDE THE FLAT: The building is old and located away from the turistic area, the neighborhood does not seem friendly at night and I didn't feel safe walking around with suitcases. Nevertheless we didn't have any security issues and we were able to reach the center of the city really easy.