Disclaimer: I don't frequent Fast Food restaurants.
I got to try the Chicken Fillet Burger, Chicken Jalapeno burger, Chicken Wraps and their Fries with cheese sauce special (which had a few beef slices)
Apart from the Jalapeno taste in one burger, both burgers only tasted like salt. That's it. There was nothing redeeming about their taste or texture whatsoever. They didn't have any vegetable. salad or sauce that went well with the burger or could even offer a contrasting texture to the soggy mess that it was. The only positive was that the Chicken in Jalapeno burger was soft and slightly moist, which was't the case with Chicken Fillet Burger.
The Cheese sauce fries were the worst, however. Not only were the fries soft, the cheese was very salty and not tasty, and the beef/vegetable bits had a very sour taste for some reason. The staff was very friendly, for what it's worth.
They do offer free drinks refill though. If you can't find Coke anywhere near, be sure to get a deal with a free drink from Hardees, give away the burger to someone who can't complain about its taste to you and enjoy the free soda.