The location is great! It takes 15 mins to walk to Meru beach, where there is a variety of restaurants. If you do want to walk too much to the beach, use the swimming pool at Holiday beach and resort, which is just opposite Areti's place. Buy a drink from the bar, the drink list is very reasonably priced by Santorini's standard.
The bus stop is right outside the street, so you can go to Fira using the bus. And opposite the bus stop, there is a tourism office, you can book taxis or cruises or whatnot from there. There is a mini market plus cafe 2 right outside of Areti's place, you can buy water or other supplies from there. And another big supermarket about 5 mins away.
Ateti and her husband are one of the nicest couples you will encounter in life, with the warmest smile. They will assist you and make you feel safe on the island. Thanks again so very much for the airport rides. Life saver!
Lastly, if you are into diving, there is a dive shop with a professional team. 10 mins away- Caldera Dive Shop.