The location was excellent since the tourist activities basically started "downstairs around the corner". Details on check-in was sent to us well in advance. Anna & Efi were very responsive when we had questions. On one occasion, it was an almost instant response in the evening. The rooftop terrace overlooking the Acropolis/Parthenon was surely a nice feature.
Apartment was quiet. The common area was nicely maintained. We felt safe with the security features of the apartment/building.
The layout of the apartment was nice and the living room was roomy enough for a group of 6. Kitchen was good enough to cook up a big meal for a family.
Waiting for hot water and the length of a tank of hot water available for multiple showers in a roll may need a little planning. Overall, it was not a big problem for us. Just do not expect instant and continuous flow of hot water.
We did enjoy staying at this apartment and appreciate the hosts being very responsive and helpful.