My traveling partner and I had a wonderful experience with Rio. My flight was cancelled and I arrived a day late, but Rio was very accommodating to helping my friend get checked in and giving her a tour of the neighborhood. The place is clean, quiet, and right next door to his residence - and he was so open to helping out with all of our travel issues. You're right in the heart of Athens (walking distance to the acropolis etc) but the neighborhood is kind of secluded and feels almost woodsy. The place is super quiet and very cozy. On our last day, Rio's wife called a cab for us to get to the airport and waited with us until they arrived. A really sweet couple with a great place - HIGHLY recommend if you're in Athens.