What kind of arrival/departure times are we talking about in Toronto?

Once you land in Toronto you'll head towards the Canadian customs area, pick up your bag and then head towards the connecting area, drop off your bag and go through security before heading to your gate. And since this is with AC, it'll all take place within Terminal 1.

Landing in YYT will essentially be like anywhere else - it's the coming/going via Toronto where the magic takes place.