Very nice apartment in a very attractive location. Close to Acropolis and metro station. Giannis is a nice host.
Only minus is that the door and the windows cant keep noise out of the apartment. During the evening and night you can hear people clearly from the cafes and restaurants just below the apartment. Also you may wake up when people are walking upstairs to their apartments.
All in all I will recommend the apartment but earplugs will be a lifesaver.