I will say, it could be the Five Guys I went to... in other words, I went a place that does lousy work, or had a bad cook on the grill that day.
I probably won't go back there, but if I had a shot at a different Five Guys, I might try it, to see if it was the one franchise... or if it's just not all it's hyped up to be.
I wouldn't call the burger I got a "dollar McBurger", but it wasn't any better than the Wendy's thick burgers imo. The fries did taste like the oil was old or overheated too.