This place is AMAZING! You must stay here for sure!!! It is located directly in Caldera, we felt like "living" in a postcard! Kostantinos is a superb host and made everything so easy for us (he provided transportation, gave us some great offers and discounts for breakfast and smacks, he informed us about everything we needed to know not only for Oia but for while Santorini etc). The apartment is fully equipped, the location is great, Kostantinos one of the best and santorini magical! We totally recommend it!