We stayed only one night during our long stop-over in Athens. It is located convenient in the city center and it was easy to reach from the metro station. The metro station Acropoli is just one stop from the blue line which goes directly to the airport.
We called to the host 10 min in advance and he met us near the entrance, shown the apartment and provided to us some tips about the neighbourhood. The apartment is located in a quiet street so no issues with the noise. Beds are a bit too hard (but it was ok for my husband). It was nice to find a bottle of water in the fridge and some snacks in the kitchen.
The host was very friendly and kept our luggage during the next day as our flight was quite late and we took that opportunity to explore the city and visit Acropolis which is in walking distance
All in all, it was a good one-night stay for us.