This place in Old Montréal gives an amazing experience. The main room is very nice, with a lot of chinese artwork and a huge number of tea boxes. Everything in here looks authentic. More than a tea shop, there is a few tables where you can seat to eat a few but very good food items while drinking your tea. As a vegan, I chose the dumplings and the small chinese breads. It was exquisite. Moreover, the staff will serve your tea following the chinese decorum. It's very nice. You'll have a 1L thermos of hot water for one order of tea so you can drink a lot of great teas at a reasonable price.
I really recommend the experience if you come to Montréal.
Cons: small, few food items