The McDonald's in Tustin, CA at the corner of Bryan and Tustin Ranch Road has the worst customer service. It's become a joke in our family to see if they can get our order correct. Today we ordered two items. Even though I asked for ketchup on the burger, the screen in the drive through did not have it listed. The woman said she would make sure she told them to add it. I also ordered a Diet Coke. When I got to the window to pay the woman shorted me a nickel in my change. (She gave me back $14.95 instead of the $15.00 that I was due... read full review »