I'm not a fan of the overall push to say X is great because it now has a ton of toppings. (A food is great if it's great in its traditional, plain form. I'm fine with established regional topping combinations)
But they say it's a smoked hot dog so it might be decently unique by itself.
I grew up closer to Chicago and regularly had Chicago dogs, but never learned the ketchup hate. If I have a choice, I'd prefer a Chicago dog drug through the garden, or a chili dog vs a hot dog with ketchup. But I'm not going to eat a dry dog with no ketchup if other toppings aren't available .