My wife and I have never been to Greece. We found this place and the reviews were great. Oia is crazy packed and this place is a 10 minutes walk or so away. When you get there it feels like you are miles away from the mobs of tourists and selfie sticks!
The best part of this place was how much Giannas helped us. He booked transport to the airport for us, transport to and from restaurants and even our boat cruise for the day. Having someone to help with this is key when you are somewhere you are not familiar with.