All valid points, but they leave out the individuals. What might seem leasurly to one person may seem excruciatingly slow to another, and totally rushed to a third. It depends on your expectations and habits. For instance I worked in a position as a kid that demanded I eat quickly and get back to work. It's an unfortunate habit, and it has carried over long, long beyond "kid-dom". As such, I do eat quickly, and constantly feel like I'm on the clock. If customers would give restaurants an idea of their expectations, the restaurants might be able to "get a clue".