We rented the apartment for 12 days and it was just awesome and a really cool place to stay. The owner was so polite, friendly and always asked if she could help with anything. The upper apartment of the house was quite cosy and comfortable including living room, bedroom, bathroom, two huge balkonies and a washing machine. Moreover, it was very clean.
It is located at the highest point at Santa Maria with awesome views. What you definitely need is a car or anything driveable. Three beaches are very close, two of them including beds and umbrellas, one of them is more natural, but really really nice!
Closest bigger city is Naoussa, which is quite nice with its port and surrounding shops and restaurants.
Summarized, with this location at Santa Maria on Paros, you will definitely enjoy your holidays!