I hope it's better recently. I've only been through Toronto Pearson twice and it was a royal screw up each time: luggage for my entire plane was sent to the wrong area and nobody knew where it was, it took 3 hours to figure it out thus missing connecting flights for 300 people, harassing immigration officers as we tried to make alternate flight arrangements because it was a no cell phone area (where were we supposed to go?), customs hand searched my bags both times and on and on.

I've since decided not to fly into North America via Toronto from now on it was so bad.

I dearly love my Canadian neighbors so I hope they've since straightened it out.