Kostantinos is very accommodating and was able to take our luggage in early for storage before the listed check in time as we flew in a bit early.
His place is large and clean and offers a nice view of the Acropolis. The beds are also fairly large and comfortable. The place includes a washer (but no dryer), A/C units and multiple TVs. It is in a very central location with almost everything in a walking distance.
Thanks again Kostantinos!