From the airport easy to take the bus X95 to Sytagma Square. Bus tickets you can buy outside at a ticket counter. From this square you walk about 20 min. more to the Airbnb. Almost all the way straight.
Communication was good with Ilias. Gave us many recommendations around the area. We didn't meet Ilias by person, but his sweet parents were there upon check-in. They speak decent basic English, enough to communicate properly. They are very very friendly.
The Airbnb is spotted clean and has all the necessary needed for your stay. We just stayed for the evening/night unfortunately, so the only recommendation we have is the restaurant we tried, which is about 3 min. walking from the Airbnb and has the best kitchen, Ama Lachei. It has a beautiful inner garden and many places for dining.
Location is great. Easy from the airport and also closeby the sightseeing. We didn't had time, because of a delayed flight, but we are sure you are at the best spot. Safe in the evening as well. Recommended.
Thank you Ilias and parents for your hospitality and the delicious cake in the morning!