I confess, I came here because I read Schwartz's is a must-do experience while in Montréal and I had a great experience. There is always a HUGE line so if you plan to eat at the deli and not to take-out, be prepared for a long wait.
Once inside, the service is quite fast and everything is very well organized.
The restaurant is always so packed that once you are seated, you will have very little room to move.
We ordered two smoked meat sandwiches ($9.60 each) and they were delicious, the meat was very tender and the portion was just right.