Our stay at Ersi Villas was excellent due in no small part to Elias and his advice and help. Nothing was too much trouble. We had a delicious breakfast there at minimal cost which I believe Elias's mother prepares daily. We also went on a boat ride out to the volcanic island and swam in the hot springs all of which Elias organised for us.
The room greatly exceeded our expectations. It was much better than the pictures on Air bnb indicated.
Ersi Villas is very close to Firostefani - about a minute uphill and also very close to busy Fira- about a 10 to 15 minute very pleasant walk if you take the pathway along the Caldera.
I thoroughly recommend Erisi Villas. It is very good value for money.