Bouillon Bilk (BB) is one of the few places in Montreal that all my chef friends consistently recommend. They pay attention to what these folks are doing. I've been here for lunch or dinner well over 30 times the last few years (I often take work-related visitors for dinner here) and have never been disappointed. Menu changes occur sufficiently often that it makes little sense to give details about the specific dishes I tried this time. While some restaurants tend to be better at delivering certain types of dishes, I feel that BB is consistent - I don't remember ever having a dish that I didn't like and the highlights over time cannot be classified as a specific type.
BB is also a very stylish spot and the service staff are helpful and extremely pleasant.
This is one of my favorite food destinations in Montreal. To reiterate: of my favorites, it is also the most consistent at delivering a solid dining experience.