The apartment has all you need: 3 min walk to Syntagma Square and where the bus from airport arrives ( X95). On the same street are cafes, restaurants and supermarkets. We walked 6 minutes down to Monastiriki and the location is really a 10.
The apartment is quiet big, with living room and good bedroom.
Check-in was perfectly on the spot, and whenever i needed an extra-towel Elissavet answered ride away and organized it well.
I definetly recommend it !