Flat is small but good enough for two with a great terrace, perfect location, close to the metro station, shops, good places to eat, but not very expensive.
Additionally Sofia is a great host: I have had an issue with my rbnb account but she has done everything what is possible to contact me. We have came after midnight but get exact directions how to get to Sofia's apartment, we were able to leave our luggage till afternoon on the last day of our trip. Thanks for Sofia's hospitality we have had spent 4 great sunny days in beautiful Athens!