Seeing that you'll be staying in Old Montreal, you might wanna check out for lunch Olive et gourmando but it's a VERY popular spot. For a nice dinner, le Serpent, again in Old Montreal, is very good. Pastries in Old Montreal : Maison Christian Faure. One of the best in the city. You might wanna leave the crowds/tourists in Old Montreal behind and hit the Mile End. Tons of great little restaurants, third wave cafés, bars etc. Check out Larry's for casual dining or brunch. Larry's is, by the way, not far from Les Étoffes, a small boutique that sells Lemaire, SNS,etc. Have fun!