It's in the heart of tourist central, Old Montreal, so you know it's going to be expensive. Luckily the quality of the pastries (mango-raspberry tarts, amazing) and the interior is worth it. Service not really -- though the younger servers were very pleasant the manager was apparently working on his PhD in Arrogant French Caricature. I was seriously looking for the camera, so perfect were the stereotypes.
But whatever, don't let that dude ruin your day, make multiple elevator trips up to the toilet on the fourth floor and show him whose Maison this really is.