Despite the QR codes being relatively new in the US, several people would not be able to recognize them when they see them or would not have a smart phone with a QR reader installed. You should rest assured that it would limit your impact. A majority of current advertisements uses QR codes would still be required to explain how they work.

It would also be required to explain the steps the potential person has to take for accessing the additional information. The site oysso.com would be able to handle your QR code needs in the best manner possible suitable to your needs.