QR Codes have a low rate of adoption, are they convenient?
If you talk to QR Code advocates, the process sounds easy: just pull out your phone and zap the code.
However, if you try it, you do:
Search for your phone’s QR Code reader.
Search for that QR code app that you never use.
Hang in there, search the app store and download.
Launch app and marvel at the camera integration.
Scan a QR Code.
Wait for browser to launch and page to load.
Try it, unless you are an insane nerd, you won’t be impressed.