Last night after getting off work after 9p and having not eaten I went to BK - a rarity for me as I probably eat fast food no more than 4 times a year. Anyway there were 4 cars ahead of me in the line, it was 5 minutes before I could order (shout through an intercom system, repeat order 3 times) and then I waited and waited and waited. The line moved at a snail's pace. I wanted to quit and go home for a sandwich but of course I was stuck with cars in front and behind.
Eventually I got to the window, there was one cook, and one server who was doing the window, the orders, the cash, the drinks AND the in-house orders and payments. The whole wait was 17 minutes which I think was way too long for a 'fast food' place.
What else bugs you at the drive thru? How often do you get the wrong order, incomplete order? This is not about whether we like or abhor BK, McD's etc but what can and does go wrong.