The best implementation of QR code menu I've seen was as followed. There was a paper menu but could also order from QR. It was a well designed page to choose fr

The best implementation of QR code menu I've seen was as followed. There was a paper menu but could also order from QR. It was a well designed page to choose from, but the wait staff was still there and took order. We had the option to order from QR if we wanted. When they entered our order, the page (linked to our table through custom QR code) updated with our order. We could add items at any point or we could "call our wait staff" who would then come to our table. At any point we could just pay our bill and walk away. It was the same feeling of using an uber for the first time and just walking out of the car and not worrying about paying the driver.