We stayed at Eleni's for 5 nights for a conference at the concert hall.
The flat is a 5 min walk from megaro moussikis, so easy to get to from the airport on the metro. Eleni lives in the building herself, and greeted me when I arrived an hour late. She remained very hospitable throughout the stay.
A great thing was that she provided us with three sets of keys, which doesn't happen often on Airbnb places. This meant that we could all do our independent things. She was also very sweet and provided us with basic foods.
The flat was perfect for 3 colleagues: there are two double bedrooms, and a sofabed in the living room. There are sliding doors that can separate the living room from the rest of the apartment, and we pretty much used the living room as a third bedroom, and the dining room as the common room.
The flat was also immaculately clean, and benefited from 2 balconies, washing machine, and lots of spare toiletries etc.
It was 5 min walk from the concert hall, and 20min walk from Acropolis area. Metro is very easy and cheap, and takes around 5min to get central.
The flat is excellent value for money, and we are very grateful to Eleni for a wonderful stay.