Great apartment, very functional, for two (or even three) couples. The apartment is large, well furnished, and with everything needed inside. It is very central just next to Syntagma square with direct connections by bus (even at night) to the airport.
Alexi provided all the necessary informations and was kind and always available to answer our questions.
The only inconvenient of the flat might be that it does not filter very well the noise from the street; apart from that, we really liked it and would choose it again for our next visit of the city!