<human>: Give me the gist of the text in a nutshell

I tried the Mushroom and Swiss burger at Hardee's and it tasted like someone mixed a sand, oil, and a shit ton of salt with the mushrooms and slapped it on an otherwise mediocre fast food burger. I left feedback through the website and asked for a coupon for the BBQ Ranch burger to see if any other burgers were edible without wasting another four dollars.

They sent me two coupons for the Steakhouse Thickburger, which has "crispy onion strings." The onion strings turned out to be a soggy mass of oil and breaded mush. I couldn't even just pull them off the burger because they made the whole thing soggy. I went back and tried to use my other coupon on the BBQ Ranch burger (same price) but the general manager wouldn't let me.
<bot>: Every burger place is better than the inedible items at Hardee's. Do not buy. I want to know what else I should never buy.