A. Sabella's has done their best to create a romantic, sophisticated environment out of a large, expansive room. I think they've succeeded. The third-story location with large windows offers views of the water and the bustle of the wharf down below.
The restaurant specializes in seafood, but there are a few selections of beef, poultry, and lamb. Excellent wine selection.
On a Thursday night, it was hardly crowded. Service was attentive. I enjoyed the lobster with filet mignon and the chocolate profiteroles for dessert. The main course was very tasty, but the dessert left much to be desired. The vanilla-bean ice cream could not make up for the fact that the profiteroles did not have much taste on their own.
I highly recommend A. Sabella's based on the quality seafood, absence of a "touristy" feel on the wharf, and the romantic setting.