I had a coupon for buy one get one free milk shake, so I figured why not give Sonic a  try. I have never been to a Sonic before, so I don't know if this similar to all others.  I was extremely disappointed in the food. Apparently you have to buy the largest size milkshake, and then you get a smaller size one for free. The milkshake was OK (I had peanut butter fudge), my friend had Strawberry and thought it was OK.  We ordered onion rings and cheddar poppers....gross is what I can say. I'm not sure if they were fried too long, or they were in old oil - but they had an awful metallic aftertaste. My friend ordered a chili cheeseburger on texas toast, and we came home to find a fried Egg, Bacon, chili, and mayo on Texas Toast.  WHAT WAS THE COOK THINKING? EEW! My friend just had to throw the sandwich away. I ordered a crispy chicken sandwich, the lettuce on it was slimy and the sandwich itself was pretty soggy.  Even with using our coupon, our meals came to over $19!  Can't believe how much their \"fast food\" was. Will not be dining here again.