I have been in many Airbnbs in many countries, and this is most surely one of the top 3 in my list. It is very comfortable, spacious, decorated with elegance and style but not pretentious (very much like Tinos itself!). It is very Greek without TRYING to look Greek.
It is located a couple of steps from an unorganized beach, but a 10 minute walk along the sea will take you to the organized beach of Agios Fokas. The nearest supermarket AB is some 7 minutes away on foot (no big hills but for the short one near the apartment), and Tinos town is 10 minutes away, with all the restaurants, shops etc. The apartment is one floor up from the ground floor, and there is no elevator.
Lots of room for 4 people. I frankly hope I can go back to this place in the future, we really really loved it. It felt like being in your own home.