It's very good. Grab a twisted puff pastry glazed with orange zest at Bonjour Brioche down the street, and then have an espresso at Mercury for an awesome breakfast. While Bonjour Brioche doesn't have the best pastry in the city, its proximity to Mercury is why I have included it here. If you can, grab a croissant at Celestin (NE corner Mt. Pleasant & Manor Road) and then head to Mercury. But even I am not that food-obsessed to do that... well maybe only once a month.