If you're patient, there is deliciousness here for you.
I read a review in the Mirror, I think. Yes, here:
http://www.montrealmirror.com/2010/030410/resto.html
You can also read more on chowhound:
http://chowhound.chow.com/topics/683484
Please go eat here.
Upon entering, you may feel intimidated by the burly men behind the counter and shelves of vegeta and jams. Don't be.
The people that work here are incredibly friendly and must really take pride in their food. The quality of the ingredients is superb and the food tastes amazing.
I've only tried the cevapi/cevapcici (little sausages) and they were amazing. Make sure to get the kajmak and spicy sauce with it.
Also: for anyone out there who likes Schweppes Bitter Lemon, they have cases of it here.
When I go back next I'm going to get the pljeskavica burger.
In the summer it's actually fun to eat it outside - they have two small wood (plywood?) tables with umbrellas. The view isn't the Adriatic or the Neretva but there's plenty of interesting and weird stuff going on on St-Hubert to entertain you.
In the winter sit inside and enjoy your grilled meats there.
The only drawback is that you have to wait for your sandwich to be completed. But good food takes time! It may take 8 minutes or so for your sandwich to be ready (and you'll be driven crazy by the scents as it cooks) but it's definitely worth it.
Also you may not need to eat for the rest of the day after having their food. The portions are very big.