We were a family of four adults staying at this place. The location is about 20 minutes by walk from Thira and is in a quiet neighborhood. There are local eateries nearby that offer good food at an affordable cost. There is also a local mini mart about a minutes walk away, where we picked up water and other food items. There is also a very good bakery nearby - the best in the whole of Santorini and probably Greece!
From Helen's place, the bus takes you to Kamari beach, but if you want to go to any place on the island, you will have to go to Thira where there are buses that take about 20 minutes to reach your destination. This worked out fine for us because Santorini is a small island and no place was too far.
Vivi, our host helped arrange a tour to the Caldera as well as suggest great places to eat and places to see. She also helped arrange to pick us and drop off at the airport which was convenient for us considering that there were four of us with luggage.
Helen's place was clean and the beds were comfortable - overall a clean, quiet and affordable place to stay in Santorini.