Ioannis' apartment was great ! it was very clean and quiet. It has great a/c in the bedroom, kitchen has all what you need to cook although i didn't cook. Check in and communication throughout my stay went really well. There are great cafés and restaurants in the area... metro as well as Monasteraki square are both walking distance from the apartment
i wouldn't hesitate to stay again at Ionannis' in my next trip to athens