Sherbrooke Liquor Store is the best beer (and good wine selection) outlet in Edmonton. The staff are all knowledgeable, friendly and good at what they do. Sherbrooke has hundreds of specialty craft beers, something for every palate, and takes pride in promoting Alberta micro-brewers. Local, local, local. Also they are tremendously community-involved, always willing to help out a charity or non-profit endeavour. Can't lose with these guys.
