We booked this Airbnb quite a few months ago before it had any reviews, and are so very glad we did! Everything in the descriptions and photos are accurate or better!
First, the location is amazing. It is right a the beginning of the pedestrian path in the center of Oia, which means if you are up at 8AM, you can enjoy all of Oia with almost no tourists (or anyone at all!) for almost an hour (the busses start shuttling people up at 9AM or so).
Second, Vasilis and cohost (I forgot her name, but she was very sweet) were great. Breakfast from their downstairs bakery with fresh orange juice and excellent coffee was very filling. They were able to get us onto a sold out Catamaran cruise, booked transport, helped us with laundry, gave excellent recommendations, etc. and is almost like having your own personal concierge.
Finally, the space itself was amazing! We spent hours a day in the jacuzzi cooling down after a hike or warming up after the sunset (jacuzzi temp can be changed which was a huge plus) with gorgeous views of the caldera and Oia. There are narrow stairways to get to the bedroom loft, so would not necessarily recommend it to anyone with mobility issues, but otherwise this was one of the best AirBNBs I have ever stayed at. Excellent value and highly recommended!