The cave house is super adorable, built in the traditional Santorini style. To clarify, this is a hotel and Elias rents the rooms on Airbnb. The location is good--no caldera view (though you can glimpse the sea on the other side from your patio), but it's a short walk to all the businesses in Firostefani and Fira and it's near the bus stop. It was very clean and we had everything we need. Elias is extremely helpful and provides lots of information about the island, plus he let us store our bags after we checked out.