3.5 is my real rating.
This place offers a huge selection of breakfast/brunch, and the size of them is insane. On other words, sharing a plate among 2 people is a good option for those who want to avoid wasting food. Food is good but not extraordinary either.
The place in itself is big and rather noisy. There is almost always a lineup; expect to wait a good half hour or more over the weekends.
Service is good but slow, so keep in mind that patience is key.
End word: A decent option in Montreal.