Check in: Smooth process as they were expecting me. Key was ready and I was personally shown to my room. Even gave me a map of Santorini without my asking.
Location: No cars can get to this hotel, but a about 2 minutes walk from the Kyklos Parking lot. The hotel is located at the end of Oia, so there is really nothing blocking your view of the sunsets. From my terrace, I was looking down at Ammoudi Bay and across to Thirassia. It's a less than a minute walk to a market. And there are restaurants behind and next the hotel (not affiliated with the hotel). Otherwise, you've got all the restaurants closer to the more central part of Oia.
For swimming, you would have to walk down to Ammoudi Bay and over to the left around the bend. Probably about 20 minutes walk down the stairs and th path. Follow the crowd, I guess. Although I only went very early in the morning and I was the only one there. Great for pictures.
Accommodations: I had #1 which had 2 twin beds in the roomy living room, a queen bed in the bedroom, a large bathroom, a walk in shower, and a small kitchen with refrigerator, coffee maker, plates, cups, utensils, etc. just no stove. The bed was fine and the sheets were nice and clean. Outside, I had a large terrace with 2 lounge chairs and a table with 2 chairs under and umbrella and a couch. You also have a place to dry your clothes outside.
Customer Service: Very helpful and nice. Very accommodating.