The apartment was exactly as pictured: very sleek, modern, and spacious. AC in both the living area and bedroom.
The balcony and views were amazing. The balcony was super spacious and looked out over the town and to the sea/caldera. The pictures in the listing do not do it justice!
The apartment was also super quiet: no noise at all from the town once you are inside.
Location-wise it is right on top of the main street that runs through Oia: bars and restaurants within a few seconds walk. The nearest mini mart is about 4 mins walk, as is the bus station; and the castle for sunset is 10-15 mins (depending on how busy it is).
Would absolutely recommend to anyone wanting to stay in Oia.