I eat at a few other particularly popular Portland restaurants where they don't take reservations and the wait can be several hours. Fortunately they will put your name on a list so you can go do something else in the meantime. It's easy to say this sitting behind my computer, but I think the only thing I would change if I were in the owners shoes, is to handle the crowds at the door better. Just because you have a long line doesn't mean you have to change anything about your business, go faster, be more stressed, etc. You would have to convey that to your employees as well.