Though you may have dined at a B. Smith's elsewhere in the country (I'm not sure how many restaurants the Food Network personally owns), this one is likely a bit different, as its menu is not the same as the B. Smith's in NYC. I'm sure there are some standards, such as the filet mignon and some appetizers, but this location in Sag Harbor, looking right out onto the docks and boats takes on a more obvious seafood feel.
First and foremost, the bar is definitely a Scene, as happy hour here is full of people dressed to the nines enjoying the sunset over the harbor with their drinks (lots of drinks). But once the bar scene quiets down (not that when its up and running it isn't a good scene) the restaurant takes on its own buzz, and quite frankly the food and service are amazing. The last time I was there, my waitress was perhaps one of the best - nicest person I've ever had the pleasure dining with. I got the feeling that many of their wait staff project the same attitude. The food was very, very good, as I started with a tomato and roasted summer corn bisque with grilled shrimp, and moved on to the filet mignon. I was also very happy since the wine list included one of my personal favorite wines, the Clos Du Val 1997 Cabernet. The rest of the wine list was also very well put together. My girlfriend was also very happy with her oysters and her lobster. Also, as a Martini afficianado, she praised the B. Smith's bartender as well. Definite "go to" place when in the Hamptons or Sag Harbor.