Recently took the train to Lugano to see that the statue of Satoshi Nakamoto had indeed been removed by vandals. So I also used the opportunity to try using Muun at real world vendors. Now, I knew that Muun isn't REAL lightning, but I'd always had and still have an excellent experience using Muun online. Specifically, every transaction has been maybe a second to process. I tried Muun at three different vendors and every one of them was more than a minute of processing. One was several minutes and the waiter encouraged me to try again. I did so, but Muun said it had already processed that transaction. I can only imagine that the little vendor boxes that create and process a lightning transaction are really slow and inefficient.