This was one of the nicest places I experienced via Airbnb. Location wise, it couldn't get any better because it was a close walking distance to all the important spots in Athens. There were lots of restaurants nearby, but distant enough from the busy streets. The apartment was extremely clean and spacious and we enjoyed the view of the Acropolis from the living room and bedroom.
We also booked his recommended taxi driver who was extremely courteous and was right on time to pick us up at 4am in the morning for our flight.
Stelios was amazing and I never experienced a host quite like him who stocked food for the guests to eat. We didn't really have to do any grocery shopping during our stay. He was attentive to every details (more towels, new umbrellas, fully equipped bathroom).
The only small problem we had was the downstairs entrance door being locked at night. We left the keys in the apartment on our last day during check-out, found out someone locked the entrance door so we couldn't get out of the building without a key. We had to wake someone from another unit (at 4am) to let us out. But overall, this was such a great stay!