A question about Jerusalem artichokes

It is season for Jerusalem Artichoke's, and i thought i might give them a shot, but looking at the nutrition they have about as much carb as regular potatoes. I decided to do a little information digging and found that the carbs mainly are Inulin which is a kind of (soluble) dietary fiber, and have a very low effect on blood sugar, and a beneficial effect on the intestine flora. What are your take on these?