The place is perfect. Is at walking distance of almost all what you need to see in Athens. The Metro is 5 minutes walking from the apartment. The apartment is very comfortable, clean and with plenty space. Rooms are wide and well equipped and kitchen has all needed for a comfortable stay. They also have washing machine and dryer. The neighborhood is very quiet and safe, near UK embassy and others. Also very close walking there are nice cafes and restaurants walking up 3 blocks from the apartment.
We really enjoyed staying in Nicolleta's apartment.
Ah! And if you are driving a car, in front of the building there is a parking building.... so.. what else you should need? .. nothing.
Next time in Athens we will go there, no doubt.