As a lowly employee in a giant hotel that is part of a massive global company, I have to say I dislike QR codes (and the micros POS). We had an issue where menu

As a lowly employee in a giant hotel that is part of a massive global company, I have to say I dislike QR codes (and the micros POS). We had an issue where menu changes were not updated automatically on the QR codes, allowing guests to order things they can no longer order. Further, when orders from QR codes went to printers in the kitchen, either parts of the order were missing, and/or the guest was able to write in certain requests, without being sure we even carried the product. I'm sure QR codes work great in some circumstances, but they didn't in this instance.