Loved staying at John’s place! The location was excellent and at the end of the long tourist path so we didn’t have any problems with crowds (just many steps for the day).
The balcony was an amazing feature and jacuzzi was great to use at night looking out onto the rest of Oia. We had three people staying here and it fit us comfortably with a cute, small kitchen and fridge and a decent sized bathroom. The unit next door wasn’t occupied too, so we had full use of the balcony and loved the view.
Be aware that the sunset is on the other side of Oia, but it is very easy to see if you walk up at night. All in all a great place to stay!