We have the online version, and we do use it, but there are a couple of things to point out. First, it is not intended to include all campgrounds, but simply the ones the author has personally been to. It also does not rate them on any type of scale. Also, while we had good luck using it last year when we were out west, not so much this year in the New England states. One recommended park we simply left after we paid, because it was so bad ~ grass, pouring rain, we would have sunk to our knees, tree issues, etc. Another park in Ohio stated which rows to request. NOT ONE road could you get down due to trees. Not one. Maybe ok when he was there, but not now. Each state we visited this hear we had issues with parks in this book. Sometimes it helps, but not as big a fan as I used to be.