We enjoyed our stay at Ersi Villas. The location was good being at Firostefani, just out of the busyness of Fira but very walkable into the town. And being so close to the views of the Caldera was great without having to pay the prices of the hotels on that side. We would have liked more of a view from our room, as many other rooms had that, but we were not offered it. I suggest asking for an upstairs room. The pool area was a little noisy at times from the constant passing of 4-wheel bikes on the road below. The pool area was nice, and clean. We appreciated Elias's help with ideas for what to do, and also with restaurants. He as very helpful. We did the walk from Fira to Oia - a wonderful 3-hour walk along the ridge all the way to Oia with stunning views the whole way.