The flat is very central and 15 minutes walking distance to centre. The scenery from the balcony is perfect with a view of Acropolis. There are lots of supermarkets close the flat and rent a car company if you need a car.
The flat has all equipments you need to if you want to cook.
The central heating system is not working but we are fine with air conditioner and a heater even it was freezing outside.
The flat was super clean and the owner of the house helped us a lot for 5 days when we need anything. I strongly recommend anyone who wants to visit Athens. We were couples but up to 4 people can stay in the flat easily.