I came here every morning for breakfast pastries on a recent stay in Montreal. The chocolate babka is a brick, in a good way, and very tasty. I didn't find it to be as transcendent experience as other reviewers. The rugelach are also very good, especially the raspberry nut. The price here is right; it's insanely cheap for what you get.
I would definitely come back if I was in the neighbourhood but I don't know if it's worth a special trip.