All I know is that I can be car #105 in line at Chick-fil-A and I'll get my food faster than being car #2 in line at McDonald's. Whatever they're doing is working.

Yeah, in my experience they are by far both the fastest and most consistent fast food restaurant. I've read they are also the highest revenue per-site chain.

I read that they have an incredibly efficient setup, sometimes in the drive thru you get served 100 places before some competitors.

And they have the best revenue per site.