Krystal review: Very long wait in line...

I was on my 30 min break and stopped by Krystals at 1377 Union Ave, Memphis, TN. There were only one car in line at the window and have been there several minutes before the lady took my order. After placing my order 10 minutes had already passed and the same car was still waiting on their order. I waited another 10 minutes and decided to pulled off hungry and pissed. I wasted 20 minutes of my break without anything to eat. Never will I visit that location again.