Kondtantinos and his wife are the best hosts ever. We arrived late the night, but we got no probleme to get it. Perfect communication. They have so much recommendations of what to do in Santorini! They even managed to get us a car rental agency that accepts a photo of our car licence (we forget it at home).
The hotel is really really nice, typical decorations. And They offer a really copious breakfast!
There is a bus station just 20 mtrs away the hotel, the hosts get you a timetable to not wait eternaly. But, little advice, rent a car. For 35e the day, you will have the freedom to get anywhere, even to some beaches where the buses dont go. And try ti go to Santorin in a low season. We went the 8 May and it was perfect. Not so much tourist and the weather was really nice.
In conclusion, if one day we return to Santorini we will go again to this nice hotel, for sure!