As other reviewers have stated, the food is excellent and offers many interesting unique dishes. The ambiance is perfect - not nearly as noisy as the industrial warehouse trend that seems to be popular, but not so quiet as to make you whisper to your tablemates. It is not a big restaurant, so it has that more intimate cozy feel but not cramped. The wait staff was very knowledgeable about all of the menu listings (almost half of which are daily specials!), and the staff was also very accommodating to people's requests.
We loved the food so much that we went back again before our week-long trip was up. We had two different specials of sea bass with risotto, and both were creamy and delicious. The chicken and orzo soup was absolutely delectable and could have been a meal in itself. All of the fish dishes were spectacular. The rum cake dessert is quite yummy and big enough for 4. The prices are higher than average but certainly not a rip-off considering the quality of the food you are getting.
We visited in September, so reservations were not absolutely necessary. However, considering the size of the restaurant and the high quality meals, I would definitely make reservations during peak season.