We were a family of 4 and arrived 1 hour earlier than check-in time, we waited in the beautiful garden with sounds of the waves and walked on the beach, while room was being readied.
Room was very spacious with fridge, toast basket (toast, muffins, cake, crackers, cookies), filter coffee and instant coffee. Coffee machine, water heater for tea, Basic utensils, plates, bowls, single burner for heating milk were available.
Every room had outdoor porch to sit and have breakfast and dry wet clothes. Our porch had grape vine with green grapes hanging of it.
Kids enjoyed reading in the outdoor garden, under the trees, well lit even after dark.
It is located close to a mini Mart to purchase milk, yogurt, bread etc. There are also some great Greek food restaurant nearby; with gyros, kebabs, tzazki or Greek salad.
Didn't need a car, enjoyed walking and relaxing at the beach. Took taxi from/to the Sifnos port each way.