After sampling most of the pastrami sandwiches, I was shocked to taste the smoked meat at Schwartz's because it is actually better than those in New York! I feel a bit defeated since I am a New Yorker.
Schwartz's reminds me of Katz Deli in Manhattan but it looks dirtier, smaller but the Jewish servants remain. Their smoked meat sandwich is not as meaty as Katz but it is juicier and tastier. They don't have fancy sauces but yellow mustard. Surprisingly, it is good enough for all of us.
Their dill is also great as well as their coleslaw. Try the black cherry soda with your sandwich and get used to being cramped inside.
I would come back to Montreal just for the sandwich!