I'm totally biased - friends with the owners and LOVE Vietnamese food.
This place is arguably the spot that made Vietnamese street food hot and trendy in MTL. Everything here is best eaten with your hands, and shared (but I'd understand if you don't want to). Spring rolls, Che (traditional dessert), satay skewers and pork sausages - all of your favourite Viet dishes are here.
The vibe is fun, the staff is great. To see the entire menu - check out the vlog https://youtu.be/jdPzNq17_28 (literally, we ate the every.single.item on the menu).
:)