Wonderful dinners there; we went there twice whilst in Porto. Very friendly staff who makes you feel in a friend's house and excellent very fresh fish. Simple concept: you select your fresh fish from the catch of the days delivered by the fishermen and exposed at the entrance or your shellfish from the gigantic aquarium and they cook it as you like. Obviously the products are extremely fresh and tasty. Good selections of starters as well (special mention to the squids). A perfect place also to taste the Portuguese wines which reserve very pleasant surprises. Will definitely go back there when I am next in Porto