The many other glowing reviews are all true. The place was beyond clean. Everything inside was modern and new. There really is an easily accessed private path to the beach.
It's in a family's compound, but is extremely private (and everyone respects your privacy).
The beach and ocean are right in front of you on the deck. Kamari Beach is a tourist town (though much more laid back than Thira), but this place is separate from the main tourist area, and feels like it's in a different place. Yet all the restaurants, cafes and bars are just a minute or two away. The bus to Thira was also a couple of minutes away, and the service was excellent.
It is difficult to imagine a better spot on Santorini than this one, especially if you are looking to be somewhere quieter than Thira.