Culver's has a gluten-free bun, so I figured I should try them out. The burger was a good fast food burger, which I haven't had in about 20 years. Fries weren't "extra crispy" but were still very good, and the sweet tea is just as good as the sweet tea from the place that makes all those donations I find unacceptable.
Though Culver's has the standard cross-contamination warnings, I've had no adverse reaction to eating the food I got, which is more than I can say for some fancier places I've been.
I'd say this is a really good option for someone with a wheat allergy, gluten sensitivity, or possibly even Celiac disease who wants to eat fast food-style burgers and fries.