Our experience in Santorini was incredible. I took Maria's offer for a ride from the ferry (you should too) and she had people greeting us when we arrived. The porters helped us with luggage the entire way down to the villa. The cave house is exactly as described and wonderfully located. They left us a bottle of water, orange juice, breakfast items and an espresso machine. Everything and everyone we had interactions with was so incredibly nice & helpful. Maria S. (the other Maria) came to explain Santorini and things we could do during our three day stay. She recommended the cruise and gave us ideas on things to do. They offered a service to do our laundry (20 euros) and came everyday to tidy up.
The location is amazing! Although you cannot see the sunset from the villa (there aren't many houses in Oia that face the sun), it is a short walk away. Food, souvenir stores, and the shuttle to other towns on the island was a five minute walk from villa. If you're looking for an Airbnb but would like some advice/direction from locals, this would be the best place to stay!