Large, centrally located apartment, wonderfully furnished and really, honestly, truly air conditioned (it was 99 F one day, and we were very comfortable). Very quiet, spectacularly comfortable beds, luxury hotel-style showers. Fully furnished and easy-to-use kitchen. At the edge of the Plaka, great restaurants, including a wonderful vegan place (Avocado), convenient grocery store on Mitropoleos, about 20 minutes by foot to the Monastiraki flea market, a short cab ride to the Acropolis. Right at the start of Lonely Planet's walking tour of central Athens. I'm not sure you could do better in the middle of a major city.