First, let's talk about the view from this place. It is AMAZING. The location in Oia can not be beat. John's place is at the end of a "street", so you don't really have many neighbors or tourists coming down your way. The only thing that may invade your space is a friendly island cat looking for a pet and some food.
John was incredibly helpful and responsive about every question we had. We needed somewhere to store out luggage and he gave us a place right away and arranged for his house keeper to take us there upon checkout.
The space is modest and clean, everything you need to enjoy your stay. The roof was great for laying out and having a bottle of wine while watching the sunset at night. The little patio out front was where we started every morning, sometimes with a coffee, sometimes with a glass of wine. (Vacation, why not!?)
I highly suggest renting an ATV to get around the island, everything is very close and within on hour you can be on the south end of the island enjoying some fish tapas and exploring the ruins. We also loved hanging out at Mezzo, a little place for food and drinks right on the main walkway in Oia. Reasonable prices, great service and the view is amazing. Plus, the people watching is not to be beat because so many people stop to take pictures there.
Overall, I would highly recommend John's place for two people that want to stay in Oia, have an amazing view and a host to help guide you along the way. Thank you John!