All in all a great stay! The apartment is really nice and I would definitely book again. Area is ok but more a place where people live and not a place you go for pleasure.
Within 100m of the apartment there is though, both a very nice restaurant ( L'œuf du coq / Rooster’s Egg) and a supermarket.
Metro station nearby. Uber working very well in Athens (typically 4-6€ for the trip to the center), or you can walk 20-25 minutes and you'll be the places to go like Monastiraki, Plaka, Syntagma including Acropolis and most of all what you want to see in Athens.
Communication with Elias to be rated 100%. Proactive, polite and very helpful.
Br, Lone and Jens