With my husband we stayed about 5 months in the apartment.
It is very well located with a metro station at less than 5 min walking distance and a big supermarket to do your shopping, you will find everything you need! The metro line (red) serves all the center of Athens without changing (Omonia square, Syntagma square, Acropolis...).
There is even a soccer field, a basketball court and a gym 3 minutes away by foot !!!
The interior is spacious for 2 and the big terrace is really great ! The apartment matches the pictures and descriptions perfectly and even seemed bigger than on the pictures, which is pretty cool.
Maria is really nice and is always available and responsive to requests !