The space was very clean and new. It is not a house, however; it is more like an annex to a house. We had 4 people and it was really too small for us.
The outdoor space is shared with another part of the house where there is another rental unit.
It is also not on the beach; it is across the road and accessed via a tunnel under the road.
It is about a 20 min drive to Oia.
The hosts are very nice. Make sure you get exact directions from the hosts; mapping via GPS/mapping programs is dicey at best on Santorini and we had a very difficult time finding the place. We found a gracious Tavern owner down the road who helped us after googling the host!