We recently visit twice. Definitely something different that your average Greek food. Dishes were tasty . I tried a couple pf (greek) wine varities by the glass and they were all pretty good, . Surely quality of greek wines has improved drastically over the last 20 years. Proferssional and friendly service. Overall a good experience and worth the try if you want to try something else that the usual greek restuarant with the standard menu.
Corret price / quality ratio

Fantastic new Greek cuisine, nicely priced. Fantastic view over the Caldera during sunset, sitting on the veranda. You instantly forget the cruise ship crowds strolling down Gold Street. During our stay in Santorini we have dined twice at this place because of the very good food and wine.

We went there on August 27, 2011 and would like to recommend this beautiful restaurant. A small debate in the very beginning (we first did not like the reserved table too much) was handled in an extremely professional and charming manner. We really appreciated this. Food was excellent and so was the service , including top wine service. Please try this place for a very good experience. It is not the cheapest place but worth it.

New restaurant so it hasn't been established yet. We read that it was managed by two famous chefs and decided to try it. It ended up being one of the best meals we ever had. Fresh, delicious , nicely presented. The pasta with the beets was exceptional.!!
Also not very expensive. A must try!!

We came to this restaurant on the recommendation of our hotel, as Koukoumavlos was booked up and Assyrtiko was co-created by the chef from Koukoumavlos.

We had a reservation at 8pm as to catch the sunset which happened around 8:15pm. The view is good, though the view towards Oia is partially occluded by other restaurants in front. The view towards the sunset and the islands though was unobstructed and a great view overall. Even with an 8pm reservation, we were one of the first tables being seated, though the place started hopping by 8:45 or so.

The food was overall excellent. The grilled vegetables and fava bean starters were great. My entree of lamb shoulder was marvelous, both tender and having excellent flavor. To wrap up we had two desserts - panna cotta with cherry tomatoes and mint, and a chocolate mousse wafer cake with mango-jasmine ice cream. Both were excellent.

If I were in Fira again, I'd definitely be heading back or trying the sister restaurant Koukoumavlos.