The concept is totally new to Montreal and it’s very refreshing to see that kind of place pop up.
As for food, they serve fresh juices, pastries, tartines and bowls. While I was there, I got the Danza bowl which really reconciled me with tempeh. Most of the lunch options are vegan and gluten free as well.
How to get to Cafe Les Impertinentes?
Easiest way is to get of at STM Station Saint-Laurent and hop on the 55 North. You can also get off at STM Station Laurier and walk for a bit.