There are two "money shots" in Oia where all postcards come from: the sunset and the chapel next to this rental. The view of the caldera is unbeatable and the views of Oia are great as well. The problem with this is that it will attract a collection of wedding photographers and selfie sticks. We even had some walk around the porch while we were reading! In general though the tourists aren't much of a bother and only really show up in the late afternoon.
It is quite a steep climb up to the main level from the house, but it's worth it to be in the dead center of town.
The unit was clean and very nice. It was also quite large considering it's a cave. Would definitely go again!