So it appears that Krystal has moved into the Dallas/Fort Worth Metroplex, so i got one for research. As i was eating it I was thinking... this is actually a good burger. The beef had a great flavor and the onions and mustard were in perfect proportion to enhance, not overrule, the burger. Did I just get lucky?
While I don't think they're all THAT great I eat them a fair amount. I was born and raised in Chattanooga, too, so I've been eating them as long as I can remember. These days I tend to get Chiks more, though. I must admit though that there is nothing like a late night trip to Krystal after a long night out with friends. They taste 10x better to me after midnight and a few drinks.
I'll agree with Scott and say they aren't THAT great.
They are however damned good at what they are. Belly bombs. Much better than White Castle IMHO. I have to have some every time I go to the inlaws.