So, I don't like meat. I'm more of a veggie and fruits person with the occasional tofu. But of course I had to try out Schwartz's since I live in Montreal. Man. It was really good. I don't know what it was about this humble sandwich, but it was so delicious, and I drool thinking about it.
Go late at night (9pm or later), or just get the sandwich as a takeout and eat at some public space, like parc Jeanne-Mance or quartier des spectacles just in front of the place-des-arts métro, and you will save hours :)