We spent five amazing nights at this place and can't say enough good things about it. The most important feature is the view - three, unobstructed views of the Acropolis. I don't think that there are any locations in Athens that can beat that! We also had a seamless check-in. Konstantinos responded quickly to my (many) Airbnb messages and greeted me at the door as soon as I arrived.
Also, the location was unbeatable. The unit is located right in the thick of things. Ten minutes walk to the Acropolis, fifteen minutes walk to the Acropolis museum, and five minutes walk to Syntagma Square. The whole area is full of restaurants and bars, so we never had an issue finding something to do.