This apartment is INCREDIBLE. All the pictures are even better in person. Truly breathtaking. We never got to meet Panos as he was in Athens during our stay, but what we did come to find out is that his apartment is part of the Fanari Villas (would've been nice to have known this ahead of time because we had an early arrival and had no idea where we were going). He arranged for a porter to come get us at the Kyklos parking lot, but none of the locals knew where that was or how to get there so there was a bit of a lapse in communication, but we worked it out. All the reviews are accurate about the extensive amount of steps (but such is Santorini). Amazing stay here all around though. Will definitely be back.
OH! And the receptionist at the hotel, Nicholas, was incredible!! He helped us with EVERYTHING! He booked us a boat ride to the hot springs (definitely recommended!!) and was just helpful in having us understand some of the things about the island.