Swung in here on a recent early-summer weeknight and only later realized they'd just opened the place.  It had been packed the previous weekend, with a front window that opens up onto the great terrasse on Avenue Mont-Royal.  Terrasse was unfortunately closed on this particular night as the permit was in transition, so we sat inside.\n\nOur fab serveuse, Emilie, was very quick to serve us and knowledgeable on the beers on tap.  Saint-Sacrament has house blonde and rousse brews, the former of which isn't stupendous in terms of taste but is rather good, and one could imagine sinking quite a few over the course of a Saturday night.  Other beers on tap include Stella Artois, Hoegaarden, Alexander Keith's, and a couple others -- nothing out-of-the-ordinary.\n\nThe bar seemed not quite as well-stocked as it could be, but the place does not profess to be a nightclub or cocktail bar, and Emilie was able to improvise where necessary.  It is, quite directly, a tavern.\n\nAmbiance was really where Saint-Sacrament has things kicking on all cylinders.  Amazing long wooden tables made from reclaimed wood are at bar-stool height, and are great for larger groups.  (I anticipate if you show up at a decent hour on a weekend, you won't have to contort to ask for chairs from other tables.)  Fantastic tin ceiling.  There are about four or five individual and properly-interior-designed washrooms in the back.  Place is spotless, and the music is fantastic: good mix of Rolling Stones (\""Bitch\""!  Hadn't heard that in years), Johnny Cash, and other proper pub music blasting over a great sound system.  After cranking the music up louder at one point, one of the proprietors actually came over to make sure our table wasn't disturbed by the volume, since we were right under the speaker.  Nice touch there, too.  (Considering the quality of the music we weren't disturbed at all.)  There's at least one TV in there; it was being used for a Euro repeat when we arrived, but as the night wore on it was shut off in favour of the music, which is entirely proper for any reputable establishment.\n\nDidn't try any of the food, but everything coming out of the kitchen looked nice.  Prices for the beer and liquor are very modest for a watering hole that has a proper sense of design and great service about it.  Bottom line: certainly worth spending a few hours in here if you're in the Plateau on a weekend night (or even a weeknight).  They're opened until 3am each and every night, too -- c'est g\u00e9nial!