The Neptune Suites are an exceptional stay on Santorini. Gorgeous room - hospitable hosts - incredible view - and shout-out to the fantastic breakfast (seriously, it's worth mentioning). Top notch communication, the staff was always helpful & accommodating, and overall a wonderful experience. Note: although listed on AirBNB, the Neptune Suites are a boutique hotel.
Tip regarding location: located in Akrotiri, the Suites are on the opposite side of the island from the hot spots of Oia/Imerovigli/Fira. If you're looking for the traditional "Instagram" Santorini experience you'll have to have a car, or take public transport. That said, Akrotiri is much calmer, quieter, & more peaceful - with much closer access to the island's beaches.