We did our planning in the last minute. We took ferry from athen to santorini and he arranged taxi for us there. That was prefect. When we arrived he showed us everything and he arrange for us to rent a bike.
If you need anything he is there fully for you
They have also a great breakfast there.
The location of his place is the best in santorini from my idea. I would recomand this place to stay in santorini, no smell of donkey quite beach and cinema and all shopping around