For us this was more than a five. We have stayed at Airbnbs on six different Greek Islands. This was the best. The apartment sits 50m above a beautiful, quiet and almost private sandy beach. The soft sand extends well out waist deep so it is perfect for a family but if you are an open water swimmer it is paradise. The south coast of Milos is quiet, the water flat. There is much to explore swimming either east or west. And, east, it is a only a 10-minute swim around a couple of small points to a large sandy beach where there are restaurants.
The apartment is modern, cheerful and immaculate. The spacious patio has beautiful views. The family who owns the apartments is cordial and generous. Eleni who changes towels and linen is very sweet and her English quite good.
The location is the best on the island if you have a car, and if you do rent a car, rent it from the same family (Giourgas Cat Rental). Their service is excellent.
In every category this Airbnb rates a five.
And, for us, Milos itself, of all the islands we have visited, is the only one to rate a five in all categories.