I'm pretty damn sure I've spent my last year of univeristy life at Hestia. This little tea cafe at Guy Concordia area is one of my favourites in downtown. While it's relatively small, it's also super cozy and quiet enough for me to get some work done. My favourite tea latte is their Montreal Fog, which is a hazelnut chocolate mate tea latte. I prefer having the tea brewed for an extra minute (just ask your barista to steep it longer!) for a stronger taste.
They have a royal card system so it's great for regulars who go there all the time! :)