The apartment is like presented in the pictures. The view is great and there is a Taverna right next to the building which has great food and drinks.
You would need a car to stay in Mirthios, but there a some great spots and beaches in the area.
The apartment is basic and you would need to bring some basic stuff for cooking, but it's perfectly fine for exploring the area.
It was cleaned everyday and the hosts where around the apartments most of the time.