Cafe Holt was located on the lower level of Holt Renfrew and the MAIN reason I decided to eat there was because my last name is Holt so I thought it'd be interesting to try. The place was a bit pricey ($15++). We went for brunch at around 11:30am and they had a separate menu for brunch. The sign said that food was 25% off between 11am and 12pm! The main thing I noticed was the excellent service. The server was extremely polite, kind and attentive. He immediately brought a tray of salt and spices. I ordered the brunch tartine, which had spinach, ham, poached eggs and really good sauce. It was delicious and filling (~$14). Overall, I would recommend this as a good brunch or lunch place if you're interested in tartine. They also have a decent selection of wines and coffee. Though a bit pricey, I still believe its worth it.
The Menu:
http://s7d9.scene7.com/is/content/HoltRenfrew1/Holts_Cafe_Montreal_Spring_Menu_enpdf