The location was good, and the apartment was comfortable. There were three keys to get in and out of the building, and we accidentally locked ourselves out. Quick message to Gabriela and she had someone let us back in. In terms of city center, this location was nice, as it allowed us to go out in the morning, do a ton of walking, and then take a quick break, rest before going back out in the afternoon/evening. It was easy to get to the airport from Syntagma Square, and a quick walk from the metro. We enjoyed our time here in Athens!