I would give this place 3.5 stars. There’s a lot of pros but it has some significant cons.
First the Pros: The view of the caldera is incredible, it is very clean and well maintained, and Maria always responded almost immediately.
Maria was very involved in our check in process. She messaged us ahead of time and asked if we wanted her to set up a taxi from the ferry to Oia. They were waiting at the port with our name on the sign. Given that the port is insane and Greeks don’t use addresses for us to describe where we wanted to go, this was invaluable. It was an air conditioned van which was nice since it is about a 45 minute ride. However be aware, it is not a taxi specific to you. You will pick up and drop off other passengers along the way. Maria meets you at the drop off point in Oia with porters who will carry your luggage. This invaluable since it is still quite a walk from the drop off point to the apartment and a large part of this walk is DOWN 80 STAIRS. Be aware you are expected to tip the porters.
Maria showed us the apartment and then left. She was quickly replaced by someone from a concierge service. This was probably THE BEST PART of staying here. Everything in Greece is done through connections and “who you know”. That concierge service has a large network of people. They were personable, laid out a map for us and listed favorite restaurants, they had suggestions for things to do and were happy to book them for us, and they made the arrangements for our taxi to leave along with porters to carry our luggage back up those 80 steps. Even at 5:15 in the morning. This was the number 1 benefit of staying here.
The cons: The bathroom is separate from the rest of the apartment. The doors are only about three feet apart from each other but it’s an inconvenience after a shower or when you have to pee in the middle of the night. There is also no A/C in the bathroom so it can get humid and sweltering in there. There are three small decorative mirrors in the apartment and one small mirror in the bathroom which made two women getting ready a challenge. The bed is not very comfortable. Those 80 steps aren’t bad the first three times you go up and down, but eventually it is exhausting and you will hate yourself for forgetting something in the room. Last, there really is not much space to just relax. We were fine with the compact space inside, but there’s in point in having a caldera view if you don’t have a place to enjoy it from. There is a small area on the roof with two beach chairs but it is not an especially relaxing area. Oia is busy and every square inch is covered in commercial real estate. There are not places to just sit and enjoy the view in the city so it would have been nice to be able to do it at home.
Over all, it is a clean safe space and Maris goes out of her way to help you. But we did not find it worth the 200 euro per night. Then again we found all of Santorini to be overpriced and underwhelming. My real advice is to go to a different Greek island completely.