Yiannis is nice and uncomplicated, answers all your questions quickly and trust u and leaves u in peace and feel free during your stay. We recomend his apt if u dont mind that it is quite tiny. We didnt, because it was clean and cute, with every necesarry (except warderobe) inside ,with nice cool airconditioner and very good metró connection, nice neighbourhood with lovely restaurants and Bars at the very close square.also close to private clinics and just 3stops from Sintagma and direct line to AirPort.