Good location between 2 metro stations that you don t need if you like walk, around 20 mn walking to the famous Syntagma square, less then 5 mn to omania square - safe and calm place, in the same street you can find many many hotels and the lights are very good in the street during night - clean apartment in the 6th floor in an old building with 2 lifts. The apartment is fully equipped with all what you could need during your stay. Many kiosks nearby and two bread factories and a small bulgarian mini market not far away from the apartment. The touristic bus stops near the apartment.
The sea is far away, around 90 minutes to arrive to the beaches in Glyfada if you decide to use the commun transport (4 to 5 stops by metro than many stops by tram- all at 1.4€ /person/way).
The photos are very accurate and shows the real situation of the apart. The airport is around 40 mn by car (35€ taxi) and 45 mn by metro (10€/person/way).
The only weak point that I found is the beds that aren't good for couples but acceptable in case of single travelers.
I highly recommend this apartment and sure I will book it again if I would come back to Athens in the future.
Thank you Paul and thanks to Nick the taxi driver that recommend to us Paul to pick us from the airport.