If you are looking for a very clean, well equipped, compact, straightforward home base while visiting Athens, I cannot recommend this place (hidden in a building with an ice cream shop on the first floor) enough.
The location is perfect, on a bustling walking street in the middle of Central Athens (where all the historic action is). Step outside and you have immediate access to restaurants, a café and juice bar with great coffee drinks and even non-dairy milk options, and the maze of shopping streets leading to the Acropolis. Simultaneously, inside is quiet, though light sleepers may notice wind sound at night on occasion.
The space itself is small (good for 2 and not much luggage-storage space), but has everything you need, including a firm, comfortable bed; kitchenette; shower (no tub); and large television where you can access your own Netflix account.
The host, Nasos, was helpful in organizing transportation to and from the airport as well.
I’ll happily stay here again.