Other reviewers have given the restaurant mixed reviews regarding taste, quality and freshness of the food. I found it no worse than other places I ate, and better than some. I ate here twice in the week, so It can't be that bad. Don't forget that almost everything in Santorini is imported, they grow grapes and small tomatoes, and that's about it. All drinking water and the vast majority of the food has to be imported, from what I can gather, mainly from Crete. Which could go someway to explain the higher prices on the island, though not some of the prices charged in the restaurants overlooking the caldera.
All in all, I found it quite reasonably priced, I was unhurried by the staff, even when there was a queue waiting to be seated, and the staff friendly ( I was decidedly ill on my first visit, and upon my return I was recognised and my health enquired after). A pleasant dining experience.