My biggest criticism is the use of QR codes. I do not scan them. If there is an accompanying URL, I would consider checking them out. But being handed something, anything, whether it is a business card, flyer, or coffee cup from Starbucks, no way. There is a long history of QR codes being used in scams. If you are going to go that route, be sure to include a URL for people who are as untrusting as I am to use.
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