Dimitris' apartment is in a brilliant location for accessing Ancient Athens sites; literally within minutes you can be looking at a Roman Bath House, Hadrian's Gate monument, the Temple of Olympieion Zeus or at the entrance to the Acropolis. Alternatively take a walk in the National Garden.
In addition, Syntagma Square is easily reached in about 10 - 15 minutes depending on your walking pace.
The apartment is situated in Plaka, which is filled with meandering streets and alley ways containing restaurants and shops if that is your thing. But despite being so close to the action, the flat itself is very quiet, affording a good nights sleep, leaving you refreshed for the next day.
With regards to the flat itself, it is very clean and is true to the photos associated with the listing. Dimitris adds some nice touches, leaving some bottled water and fruit for you in the fridge, and some sweets.
Dimitris is also very responsive to requests, providing advice on where to find anything you may need and other places to visit. In short, I would not hesitate to recommend Dimitris as a host, and this location.