Nasos' place was perfect for sightseeing in Athens. Really close to the main sites (the Acropolis, Syntagma Squake, Plaka, Monasteraki etc). Easy walking distance from the nearest train/underground station which had direct connections to both the airport and to Piraeus (the ferry port). As it was on a side street, it was very quiet, and the air conditioning was most welcome in the summer heat! Nasos is an excellent host - very informative, full of recommendations, and he met us as at the train station. Highly recommended.