DP on YYZ T1 transborder departure, weekday (not Friday) around 5pm. For both security and customs, Nexus took less than 10mins with 2-3 people in line; regular line (Canadian passport, no MPC) took 15mins with maybe a dozen or two of folks in queue.

While we didn't check bags, the AC kiosks and bag drop area were empty when I walked pass to get to the Nexus entry point.