I find it useful, it just needs to be easier on phones to get to the qr code scanner. I use an iphone, and if it was as easy as just opening up the camera app,

I find it useful, it just needs to be easier on phones to get to the qr code scanner. I use an iphone, and if it was as easy as just opening up the camera app, pointing at the code which it recognized and put a box around (similar to the focus box perhaps) that I could click on, it would go a long way to getting more people to use them.