This is a pretty uncomplicated and relatively quick snack/lunch option. The hot dogs are nowhere near as good as Pink's... but they're not terrible.
I had the Detroit Coney Classic (grilled frank, chili, onions, mustard & cheddar cheese) and a side order of onion rings. It was almost $15 but it was also a LOT of food - definitely more than one meal. Possibly could have used a bit more cheese (when you wrap a hot dog in paper... the cheese WILL stick to the wrapper - they should really wrap in foil first). But a pretty solid effort.
Located in the Linq Promenade, I wouldn't put this on your "must do" list, but you could definitely make a quick and cheap meal out of sharing one dog and some fries or onion rings amongst two people... there is a LOT worse food to be found in the Promenade to be sure.