I sometimes eat at Carls Jr or new looking Hardee's about 3 times in the last 2 years. I actually find them to be quite good because they are very friendly to not eating bread.
I like the egg breakfast bowl(no biscuits or anything) with some hot sauce it is good and quite cheap. It is good for a road trip anyway.

I don't have much clue about their burgers I pretty much only eat burgers I make at home.