Yannis was a wonderful host. He was super quick in his replies to my messages and very willing to help out with anything I needed. His place is perfect for 1-2 people and in a great location - really close to two metro lines (12 min walk to the blue line and 5 min to the red line), a number of restaurants were nearby and a grocery store was within about a 5-7 min walk. If I ever come back to Athens, I hope I can stay there again.