We only stayed one night at George's, but honestly it couldn't have been better in a week! George offered to pick us up at the metro station, was here to welcome us and kept our luggages all day. He then came back at night to show us the appartement, which was awesome by the way! Very clean and tidy, and with a lot of facilities. He even left food which was very useful because we didn't have time to get dinner. And at night, we had questions about the metro times, we texted him and had an answer right away. If I ever come back to Athens I would definitely book George's flat!