Greg and Alex are great people.
The apartment is nice and the location is good.
I suggest this place.

Greg and his brother Alex were hospitable and available for anything we needed.
Alex came to the Airport to bring us to the apartment (under payment, honest amount). He suggest us a place to rent a scooter and then we had a coffee with him and Greg.
They gave us useful information on the town and on other places.
We spent an evening talking with them and other French guests drinking Greek wine.
They procured us tickets to visit Symi island.
Greg accompained me to the only one pharmacy open that evening in the town when I needed it.

The apartment is good (like the pictures) fine for two people on holidays. the only negative point is the shower (it is a small bathtub with seat) that is uncomfortable, but Greg told me that he is going to fix it.
Location is good (20 min by feet from the centre and from a nice beach), close to supermarket and nice restaurants, very good if you rent a scooter or a car (I suggest the first due to parking and traffic problems).