There’s only one reason why you should be using QR codes, people are lazy. Thats right. Yours truly included.
I get lots of business card, emails, price lists, etc. So many that I have a seperate file and emal label for those where I still need to enter the persons contact details into my contact manager. Wouldn’t it be easier if you could just scan all those cards in? Suck them right out of the emails (or whatever) and into my contact manager…
Imagine the number of customers, potential partners, etc. that could be adding your details at the moment they saw (and scanned) that code. Instead of getting suck wondering what your name was weeks later.
I’d suggest that where ever you have contact details, add a QR code BS card.