I actually had a pretty decent time rolling through Pearson on my way out of the country. Whatever terminal I was in (I popped a Gravol maybe a little too early to help snooze through an eight-hour flight. Self-medication holla!) was filled with cool modern art installations, the restaurants and cafés before you pass through security seemed spot-on, going through security was a bit of a crapshoot but it always is nowadays, and the departure gate area was fine and dandy.
Nothing outstanding but no major headaches either. Again, might have been the Gravol.