This is a great place. It's attached to a small hotel run by Marina and Lila, so both are always there for anything you might need. Marina was helpful and arranged for a limo from the airport (since we arrived at night and didn't want to struggle to find the place), and then Lila gave us a great welcome as we arrived. Lila also gave us a complete run down of all the possible excursions to take, places to visit, bus schedules, etc ... Both Lila and Marina made our stay extremely enjoyable.
The place itself comes with a fully equipped kitchen with stove top, oven, sink and refrigerator. The bed is soft and comfortable. The bathroom includes a full shower with 24/7 hot water. And being on the second level, it also provides a very private terrace.
The location is great ... close enough to town to walk to all shops and restaurants, and to view all the sights (including the sunset), but also far enough away to provide some more quiet at night.
The location is also great for getting around by bus. The main bus station is only a few blocks away, with busses leaving from there to go to everywhere on Santorini. And it's always easy to find your way back, because all the buses always come back 'home' to the main bus station.
We highly recommend this place!