This is the most reliable place to dine in TO. Not only is the atmosphere pretty cool - especially on a warm summer evening on the patio - the food rocks. Don't be fooled by the fact it's attached to a mall. Mercatto at Eaton Centre is awesome for dinners with friends, co-workers, colleagues, or anyone - even dates. I've never been disappointed with any meal I've ever had there. I often recommend it to friends and always to out of town guests.
I do miss the bucatini though. Wasn't on the menu last time i was there and i loved it! Last thing I'll say is that last time I was there a few weeks ago, dishes seemed smaller than usual... hopefully they're not skimping or I'll change my vote after next visit.