I stayed at Athos for five nights. It is a clean, comfortable hotel, and people are friendly and helpful. I got an upgrade to live on the rooftop level with a nice view of the Acropolis. We are good since we plan to hop to different islands and did not pack a lot of luggage, but if you have a big size/lots of luggage, please ensure you check if the room size is right for you, or use the storage option available from the hotel. I feel safe even walking back to the hotel late at night. It is also in a very great location and close to everything.