This location is convenient for people visiting the Epicentre, as well as people in the downtown area. I also work in a restaurant in the area and have stopped here many times. Our staff's candy and RedBull consumption alone I'm sure accounts for a great deal of their profits. I also like that they're open late, so when I get off work and remember that I'm out of shampoo, it's easy to grab on my way to the train.
That's exactly their problem though- with such a convenient location and late night hours, they're hardly ever staffed appropriately. There is typically a line a mile long, and only 1 register open no matter what time I go in. I could understand if it had just opened and they needed to work out kinks, but they've been open plenty long enough to know that the EpiCentre gets busy on weekend nights. It should not take 20 minutes in line just to grab wine and nail polish remover.