Bring back menus, QR codes are terrible

QR codes work fine where I live. I believe problems are due to the implementation, not with the concept.

I find it very convenient. Connect to the local wifi, there's no confirmation code, just open wifi (most of the time - some of them have an unnecessary "accept" step. Never any "confirmation code"). Scan. Browse. Choose. Pay, or pay later (convenient, I can adjust the tip before I pay).

All in all it's much faster than having to wait for a waiter to come to the table to take the orders. We can add and remove and make up our minds in peace, then just sit down and wait - drinks arrive straight away, the rest later.

And we don't have to wait forever to get the bill and to pay. It's all done. In short, to me it's a great improvement. Obviously it wouldn't be if the implementation hadn't been good, but around here it is.

Edit - let me add that most places I visit also have a physical menu to look at, it's just that ordering and payment is done via the web browser.

To each their own, but that sounds less enjoyable than a traditional restaurant experience to me. As you say in your example, so much depends on the "implementation" in this case too — i.e. is the service at the restaurant good or not — but a talented waiter brings a lot to the table in more ways than one.