Here is my honest review I will try to convey what you should expect.

The pros

Location, location, location you are housed in the perfect spot, the views are incredible and not just out towards the ocean but to the left to the right and generally all over...night time strolls are just as picturesque.

The house is nice, generally clean and a decent sized bathroom and shower.

The house is cool, there is a fan in the bedroom and an AC unit I. The living room, we didn't use the AC as it is a cave house and stays pretty cool.

The neighborhood is safe and the house is on a closed street, so safety was never an issue.

Lots of good places to eat nearby.

Great sunset!

The cons

This might not be unique to this property as I have seen many others complain about this in other homes on Santorini island but there is a somewhat strong sewer smell that comes from the drains, it becomes stronger at night time, Maria did offer a suggestion, too bad it was after we had woken up because of the strong smell so ask how to mitigate before you go to bed.

There is a restaurant upstairs and there is a bit of noise, not unbearable but some noise, it closes at 11pm and the noisiest times are during opening/set up 08:30am and closing 11:30pm. On the plus side the owner does have a great jazz music collection that he plays throughout the day.

Overall I would probably stay there again but it would have been helpful to know these things before booking...both Maria and Vasili are good hosts.