Glad to come across this thread. Currently taking a break from the line, the burnout is real. Always waking up, never hungry, get to work, prep, no appetite. Eat a pastry when the cafe closes before sit down. Back to prep. Lineup. Service. Before I know it, all I ate was a pastry. With that said, shoes are so important. A PT told me that working on the line is the equivalent of running a marathon. Imagine doing that with crap shoes. Also, do not stand with locked knees. Will wreak havoc on your legs.