I'm a bit with Dillinger here. The indulgence bar sent my BGs up, but the Atkins daybreak bars didn't affect me at all. And I like them, so double win!
With polyols, Dillinger is right (of course, smart xxse) about them officially counting as zero, BUT, read a good article about polyols. It reckoned in summary that they DO have an effect (as I'd expect) and that you should count HALF of them in your carb count. This would make your indulgence bar 7 grams carbs, still OK for a snack I'd say. But test and see is the answer I guess as with all things.