Visiting this craft beer store was one of the highlights of my most recent trip to Montreal.
While the space is small, the beers are very carefully curated. We ended up talking to one of the guys who works here for over half an hour, learning about different beer styles (broadly), Quebec beer laws, and some special brews in Quebec.
You can tell this store is special, as many locals were coming in and out while we were there. There also seems to be a nice rapport with the people who work here, who are obviously willing to help.
For any American coming to this store - they will do trades for special, highly-coveted beers (think Treehouse or Alchemist), and you'll get a very nice trade with what you bring. This opportunity is definitely something we plan to take advantage of when we inevitably return to this store.