While we were only there for one night, we had a lovely time at Athanasios' apartment. The place is very clean and well-designed. The view of Zeus' Temple across the street is impressive. It was a little too cold for us to enjoy the patio that night but I'm sure it's beautiful in the warmer months. While the apartment is not in the center of the Plaka, it is a very short walk (and also much quieter!). Athanasios is very kind and helpful with arranging transport to the airport. We recommend the "Coffee Joint" cafe nearby--delicious pastries and very sweet staff!