Decided to give Schwartz a try because it's apparently a must-have when in Montreal.
The line wasn't too long. Probably a 15 minute wait. We paid around 40$ for 2 smoked meat sandwiches, one Cherry cola (recommended by them), regular cola and fries. It definitely hit the spot and I loved the tenderness of the beef and how it was seasoned. Everything went well together. In the end it got a little dry, but just put some mustard in the sandwich and that'll solve your problem! The portions were pretty big in my opinion as well...So for $9.60 that's a pretty good deal for me.
One thing I noticed was that the bread used was just regular bread...Would be nice if it were a little bit less flimsy!
I would come back for another sandwich.