Great apartment, exactly as advertised. It is spacious enough for 4 people. The location is perfect, walking distance from the main touristic attractions (acropolis and museum). There is a 24h-market across the street. There are several restaurants and souvenir stores 5 to 10 min walking from the apartment.
Tzvetelina is a sweet person and a great host. She was always available for any questions. I will definitely stay here again next time I travel to Athens.