"Drinkers Unite!!!"
Normally when I visit a foreign country, I try to make a rule not to eat the same food that I can get back in the U.S. (mainly fast food places) with one exception. . . when I'm drunk. Plus, there are not too many, if any, A&Ws in New York City.
This place is pretty simple; chicken and burger sandwiches at 1, 2, or 3am. One positive of this place, besides fried food, is that this location is open 24 hours. Since this place is on Rue Ste-Catherine, which houses many bars and "slorehouses", it is a quite populate late night hang out and beer/wine/booze-soakup spot.
The only annoying comment is more about the people that go there and less about the staff. Since less than 4 people are working at 2am, the place can get a little mess because of all of the rowdy folks that leave crap everywhere.
One tip: if you are leaving Montreal and you have not eaten at Poutineville, just have the poutine here for your poutine fix.
Happy drinking and eating.