I love the idea behind QR menus, but honestly, most implementations are lazy. You're not just swapping paper for a screen, you're throwing away a chance to build a relationship.
I tested this at a place I worked with. Slapped up a QR code, got a few scans, but zero repeat business. The moment we turned it into a capture mechanism - a clear incentive, right in their face - sign-ups started rolling in. We tied it to a bounce-back offer, then retargeted via email and even search ads. Suddenly those scans turned into repeat visits.
The mistake I see everywhere: hiding the CTA. People are deciding what to eat, if you don't grab them then, you've lost them. Put the offer front and centre. Simple: 'Sign up now, get X off your next visit.'
But here's the real question: who's actually using this to build a retargeting funnel? Most people just treat it as a digital menu replacement. That's a missed opportunity. If you're not capturing data and piping it into your ad platforms, you're leaving money on the table.