Had a great stay with Sokol! Communication was clear and he was very helpful in providing tips before my arrival. The apartment was very clean and pleasant. I read some of the less positive feedback with respect to the location but think that as long as you don't walk alone late at night it's all fine. It's an easy walk to get to the Acropolis which is great if you're planning a short, touristic-oritened stay in Athens. Definitely recommended!