Originally Posted by bmwe92fan

The line to exit customs with QR code wrapped all the way around baggage claim - never seen anything like it so I filled out the form and walked out in less than a minute - and barely made my bus!

Honestly -- it's great to see Narita so busy again -- I hope they figure out this new QR code system soon.... TBH I don't think that it really saved any time once you arrive -- I mean scanning the QR code at immigration instead of having them look at your form -- maybe 30 seconds? Totally get using the app to pre-verify Passport / COVID documents -- but that can easily be checked by the airline (mine was by UA) and does nothing to speed up the process once you hit immigration...