Being that I don't live in Maine, I have traveled from New York on serveal occasions just to eat at Street & Co.
I hate clams but I eat their clam appitizer like I'm going to the electric chair. The blackend halibut tastes like a perfect steak. Great bread and butter too. They usually have some different things evertime I go. I remember once not liking an appitizer but it would prevent me from ever going back.
You MUST make a reservation way in advance. There is a line out the door the second they open. With a reservation you may have to wait 10 mins. Without a reservation, you'll never get in.