I went there on my first day in Montreal, as recommended by so many of my non-Montreal friends. I was hungry, so the amount of meat they put in the sandwich was satisfying, but I was honestly a bit disappointed.
It was a decent sandwich; try it if you're curious, but there's nothing particularly special about the taste of this $9 smoked meat sandwich, besides the quantity of meat. I would have added more black pepper and mustard. The seating wasn't particularly comfortable, and the service was a bit chaotic, even though I went at 3pm.