We cannot say enough great things about Christina, her team, and her collection of apartments on Nikis!
Upon arriving to Greece, we stayed in one apartment and spent a few days exploring Athens, and then in another apartment (in the same building--making it very convenient) when we returned to Athens to fly out post-traveling through the islands.
The apartments are very nice, comfortable, and in a convenient location to take either the bus or the metro from the airport straight to Syntagma Square. I've been to Athens before, and you have to be careful about which neighborhood you end up staying in... however, this apartment is located in the ~loveliest~ of neighborhoods, only a few minutes walk away from some of the best shopping, dining, and views of the acropolis that Athens has to offer. To go to the Acropolis itself is only a 10 min walk.
Just outside of the front door, across the street, is the loveliest cafe with wonderful coffee selections, pastries that reminded me of corner bakeries in Paris, and to-go bowls of Greek yogurt. We found this to be a very convenient and quick breakfast option before we went on our adventures throughout the city each day.
Lastly, the service we received from Christina and her team was remarkable. Her host, Bill, welcomed us with great hospitality, making sure we knew where to go, and had someone in-person available to assist any needs. Christina provided in-depth guidance and direction on our way in, and when we left Athens on our way out during our second stay the following week, booked a private transfer for us to comfortably get to the airport on time, avoiding the wait at the bus line.
All in all, this was the best place I've stayed at in Athens, and my family hopes to come again! Would highly recommend!