Buy a coffee there whenever you can. I won't fool you, this is not the one best coffee place Montreal. It comes 3rd IMHO. BUT. This is the most convenient great coffee place in Montreal. What I mean is that there are thousands of reasons for you to be close to the Tunnel, and if you are there are 0 reason for you not to pass by. If you like coffee, stop, order a cappuccino, and enjoy the rest of your day.