The flat is spacious and clean and quite beautiful. The fotos however - as often on this website - make the rooms appear considerably brighter and larger than they feel in reality. The flat has a nice "traditional/old fashioned/lived" style to it that suffered a bit from its use as a holiday flat (such as the addition of two fold out sofas to the existing seating area in the living room). The flat is near to a massive road and due to the light windows its noise is quite audible at night. Possibly not in five minutes, but the Acropolis, its Museum and the Plaka are in walking distance.
You should be aware that in the neighbourhood you'll come across quite a bit of resentment and critique as regards Airbnb's heavy influence on the rents and the infrastructure in the quarter. It is primarily for this reason and for the discussions we had on this subject, that we would decide to go for a different accomodation next time.