After using the NEXUS machine at YVR connections CBSA the other day, I got dumped in a line with everyone else to hand the agent my receipt and whatnot. ArriveCAN wouldn't have saved me any time though, because the bottleneck was after that.

At YVR arrivals CBSA last year, one time I waited a couple minutes for someone to check my receipt after using NEXUS. Because there weren't many agents, and they were handling both NEXUS and crew, it got jammed up a bit when one guy didn't have everything in order and/or triggered some suspicions. It's possible the ArriveCAN line might have been slightly quicker because while it was longer, there were more agents over there. But maybe not.

Other than that, I can't think of any time I've spent more than a few seconds in line when using a NEXUS machine in the past year or so (a couple dozen crossings at YYC, YVR, and YYZ), so I struggle to see where I could have saved time versus using ArriveCAN. I suppose it could happen, but how much time am I going to waste filling out the ArriveCAN info every time?