This review is based on their restaurant alone- which is awesome!
We stayed in a different hotel (Hyatt Regency) in Montreal for business for a week and I wish we would have stayed in the Westin. Had it not been booked full we would have. Even so, we ended up eating at the Westin restaurant 5 times in our week's stay. The breakfast buffet is superb. Something for everyone. Eggs, potatoes, bacon, sausage, every kind of berry and fresh fruit you can think of (even in Winter), fresh bakery and on and on. The kids eat for free also which was great, especially when you have little ones who may or may not actually eat their meal. Dinner was amazing as well. Their steak was great as was the fresh strawberry salad. We were happy with each meal. Thumbs up!