Really great flat, very clean, in a calm neighborhood but close to the city center. The balcony is awesome, with a beautiful view of Acropolis - even better at night, we loved chilling there. William was super friendly and helpful, notably for the check-in and check-out (we arrived quite late). He gave us lots of advice, among which great places to eat around his flat (the best one being 2 minutes away from his place). It was a pleasure to stay at his place!