Drinkabe coffee on the Montreal South Shore ?
Caffellini in St.Bruno or Bar à chocolat Geneviève Grandbois in Dix-30. And to put extra chances on your side, just say something like: "Is it true that you guys make great coffee and really know how to operate that espresso machine ?" Chances are if there is a fine barista in the place, he/she will take care of your coffee.
Brulerie Café Crème on Boul. Roland Therrien in Longueuil pulls a pretty good espresso, and as a result the cappucinos, macciatos, etc. are quite good. The owner is a coffee fanatic, but he's rarely there. Most of the time it's run by his wife and kids, who he seems to have trained reasonably well.
Very hard to find--the best is the cheezy shop in Saint Lambert...um...not called that...let me go find it.
ok-here is a link:
It's not the best espresso but passable and they know how to make it. It also doesn't hurt that it's the cutest/coolest/"chillest" place on the shore.
On Tachereau your options are none but there is a Premier Moisson on Lapiniere which makes a decent allonge. My suggestion is to find a Vietnamese resto and order a hot coffee with condensed milk. Let me know if you discover something...