The flat has an excellent location if you wanna explore major sights of Athens incl. Ancient Agora and Acropolis as well as to enjoy Greek cousine and nightlife as there are superb restaurants 5 min away on foot.
It is also quiet as all windows are into interior courtyeard/terrace of the building (no windows facing the street) and so there is not much light in the morning going to the flat from the outside.
As to communication, Amelie provided all necessary information on our check in, the flat and its surroundings.
Check in is done via entering a personal passcode into a console next to the entry door to the building as well as to the flat itself.
The flat has all amenities you will need. The only drawback was that the TV was not set properly as it did not show any TV. channels.
If you use the flat only to sleep in and have breakfast/dinner than its without any other drawbacks.
But if you stay in the flat after 9 am then (i) a machine on the flat’s tereace starts to make loud noises so one cannot enjoy the terrace as much and (ii) as all windows are facing a terrace/courtyard surrounded on all sides by the building and walls there is not as much natural sunlight coming to the flat as you would normally expect.