Another great aspect of the QR code driven menus is that after my meal or drink arrives I still have the menu readily available, so I can check what is in the dish or drink that's in front of me. It's great for foodie restaurants that give lots of description in the menu - before, when the meal came out I would sometimes find myself wondering what that odd shaped component was on my plate, but with a first class phone accessible menu I can get back to the description of what I ordered and figure out what's on my plate, or figure out what might be making my drink taste like bitter orange.
I didn't notice how much I liked these things until I recently traveled to Santa Fe, where every place was still using printed menus. One drink menu for a table of five? Let's all pass it around and tell the server to come back in a few minutes after we've had a chance to look one by one. Server took all of the menus after ordering, then comes around after the meal inquiring if we want dessert? I don't know what's on the menu, but I'm not interested in waiting for the server to come back with the menu. I ordered posole as a side, but forgot what the description was? I guess I'll google it...