We enjoyed our stay in Santorini at Thea studios! This bed and breakfast was quiet and conveniently close to Fira (10 min walk). Keep in mind this is one of several units in the complex so a bit different than AirBnB experiences we've had in there past. The quiet nature of the place can be positive or negative depending on what you're looking for. There are groups at breakfast, but everyone keeps to themselves (not a social environment). Breakfast was nice each morning and it was convenient renting a quad directly from Dimitris to explore the island... I highly recommend this. Dimitris arranged for a transfer to and from the airport. A bit pricey at 20 euro for a 5 minute ride but worth it for the convenience.
Overall, Thea studios served us well. We would consider staying again on another trip to Santorini.