The location of this place is great.
It's just a 5-minute walk through some alleys to get to the center of the shopping district of Thira where you'll find everything you need including bars, restaurants, and shops.
The apartment was kept extremely clean with daily housekeeping which saw the bed being made and new towels for the shower.
The advice from Katerina was also great. We reached out via text a few times (unfortunately some emergency took her out of Santorini for our stay) and always received prompt, in-depth responses from her.
There were only 2 issues throughout our entire week's stay.
The first was with the hot water. The water is heated via solar panels on the roof which I'm sure would be great in the summer. However, towards the end of the season, when you'll get some overcast days, you'll find a lack of hot water making showering a chore.
The second issue was with leaving the property. We were due to fly early in the morning and Katerina helped us book a taxi. Unfortunately, the taxi never arrived so we had to rush to grab a taxi so we could make our flight.
If any other day this wouldn't be an issue, but as it was to make our flight it added a lot of stress to the process.
Generally speaking the apartment and the service from Katerina were great though.