I can't even consider in and out to be fast food, more like an awesome burger place that just so happens to have a drive thru and speedy turn out time. The staff is always friendly, I love that I can watch them make my food = no secrets or fallen patties ending up on my burger.
My family visits in and out on average once a week and we have never had a rude employee, wrong order or any other occurrence that would be normal at any other fast food place.