100% recommend Vaggelis’s place! It’s a small, family run bed and breakfast that is in a perfect location just on the edge of Oia. Vaggelis was a fantastic host and incredibly helpful with organizing an airport transfer, an ATV rental, and giving us lots of tips for our few days in Santorini. His mother, Flora, was incredibly sweet and prepared a simple but great breakfast each morning. The rooms have a perfect view of the sunset, too.
Definitely stay here if you’re traveling to Santorini!