You have to go into the Sherbrooke Metro Station to try out this place but trust me, you'll be glad that you did! Its a very small, unassuming little shop but I can just see this as being where I would stop every morning for a pastry before jumping on the Metro to head to work.
The first time I stopped in I got a bottle of Perrier and the gentleman who rung up my purchase went as far to open up the bottle and give me a straw for it. Its the little touches that make me smile =)
For my next trip I got a cappuccino (a bit to wet but still good nonetheless), Orangina, and a couple of almond croissants. It was a bit more expensive than some other places at around $15, but it was well worth it!