Antonis was very helpful and always replying fast. Special thanks for picking up us from aeroport and for the book about Santorini (Antonis is the author).
Apt is good, hot jacuzzi on sunny balcony is really nice idea. Nearby there are shops and nice restaurants.
From Mesaria to reach beaches or capital would be mostly possible only by taxi. There is bus as well, but we found that it operates no so often. But all this logistics still was ok, and our stay was pleasant.