I have all of them. I’ve had them for years, but I don’t really use them. They go over what your child “should” know at each grade. You know, what “everyone else” is learning. (Like everyone else is learning the same things.) They have a section for each subject. The History section reminds me of Story of the World a little.
I’ve never used them to reassure myself or assessed my homeschool program by them, but that might be of use to some, since everyone is different. For those just starting, I would say they might be quite a help. I thought they were great 15 years ago! And I referred to them more before I gave myself permission to do anything like CM.
They are for the kids to read or have read to them. They address the kids directly. They are well done, and they provide a nice overview (more interesting than a textbook). My husband loves them, but he is a little easily impressed. He compares everything to the boring textbooks he had in school.
I don’t know if any of that made sense; I’ve had a headache this week. That makes me a little confusing!