Book this. GORGEOUS views and absolutely adorable apartment on Santorini. We also stayed at the Andronis Luxury Suites at around $650/night and actually preferred staying here. Stamos, the person who helped us find the apartment and make sure we were situated was absolutely amazing - easy to get in contact with, made sure we were comfortable/had everything we needed, and had our luggage taken down to and back up from the room. AND it's an original cave room!
Can't recommend this highly enough! Wish we could've stayed an extra day.