Everything went smoothly from the day we made the reservation and until the end of our travel. Both Kostas and Giannis were really helpful with everything and also personally we have to thank them regarding their really helpful attitude towards our lost luggage situation faced in the airport.
The apartment is brand new, modern and very comfortable, fully equiped. It is in Gazi, which is apperantly a trendy place in Athens, especially among young people but don't mistaken it is also quiet and peaceful. Metro is very close and a direct line from the Airport. There are many nice cafes, pubs, restaurants and night clubs within walking distance. And the jacuzzi in the terrace really helps you to relax after a long day of exploring the city.
I highly recommend the apartment with no doubts.