The studio we stayed at was part of a Bed and Breakfast (called Pension George) which meant that the reception desk (manned by Helen herself) and service crew were always available for assistance.
The location of the studio is walkable from the bus stop at Karterados which was ideal for us as we didn't rent a car / ATV / motorcycle during our stay. If you need one, Helen can arrange to pick one up (and returned) at the apartment itself. The capital town of Fira is just couple of kilometers away which was approx 20 min walk from the studio. Karterados is a central location and there are buses to all the interesting points in Santorini.
Helen was very helpful and helped us in planning our itinerary during our stay. She advised us about things to do and recommended places to eat. She also helped to arrange taxi to the airport and to the port (after our flight got cancelled and we headed back to Pension George to figure our next course of action).
The studio with a loft bed was cosy and comfortable. The kitchen was well stocked with utensils and we even managed to make our own breakfast on one of the days. Alternatively, Helen can also arrange a breakfast if you inform her ahead. She provided us with fresh fruit, yogurt, honey, juice, tea, coffee, bread, butter, cheese, cake and yummy homemade orange jam.
We recommend 'Pension George' and Helen is a perfect host!