There are so many placed in Montreal it is hard to pick. This is out of the main tourist area, and worth the trip. As others have said, the Lamb Shank (one of the two specialties of the house) is fantastic. Not a ton to eat, so don't be scared to order it. Beautifully flavored and prepared. Served with some nice vegetables.
My wife had the veal stew with gnocchi. I am not sure which dish was better! Great flavor and perfectly cooked gnocchi.
When we walked in, we were the only ones there, so were a bit nervous. But not to worry, it was great. Just one waiter and a sort of waitress/bar maid. Maybe even the owners? The man made great suggestions on what to order. The Corsican beer was also good.