I've been to Au Cinquieme Peche three times, first time for Taste MTL, 2nd time with my roomie during Burger Week and 3rd time with my friends for a farewell dinner.
Service is excellent and the waiter gives good recommendations. Their fish of the day dish is always good (I had a trout once and it was very nicely cooked, very tender and juicy). Their foie gras terrine / mousse (depending on what they have on the menu that day) are highly recommended. Their pulled pork burger is really delicious too!