QR codes work fine - as ever it is the local implementation which makes the difference. Experience I've had in Australia, UK, Spain, Portugal all pretty smooth

QR codes work fine - as ever it is the local implementation which makes the difference. Experience I've had in Australia, UK, Spain, Portugal all pretty smooth - scan code with camera, click link menu displays, make order, pay bill. Saves on wait staff, which restaurants cannot hire anyway, so this will help keep restaurants in business