It is as described by some of the other folks. I'm using the elementary level questions. We do the questions, mapping, and make the geography glossary for the notebook. We also add in some country reports (using their e-book form you can print), some crafts/art projects, and lots & lots of fables/stories from the part of the world we are studying (I do searches of the library system & request bunches of books).
We don't have the recommended atlas. However, I have a few others on hand that we've had for awhile. It's true that we don't always find the answer we need. But, it is helping my dd learn to research, look through multiple books for info, perhaps go to the encyclopedia, etc.... Personally, I think that's great experience & practice because real life doesn't just have one book that you can keep on the shelf w/ all the answers. Kwim? That said, I have a friend who wanted it to be 'open & go' & they do use the recommended atlas. She has said that, so far, all the answers are indeed in that one atlas.
I didn't care much for the look of the art/craft book that is recommended. Instead, we use MaryAnn Kohl's "Global Art".
We're getting a lot out of it, but I love geography, don't mind investing the time in finding lots of related storybooks, and don't mind teaching my child to 'treasure hunt' to find the answer. We don't stay on a set schedule & will probably take 2 years to complete the world trail guide. It works great for us. It might also work well if you just wanted to answer the questions & do the mapping, if sticking to the basics like that works well for your child.
As w/ many programs, I think it's the type of thing that you can love or hate, depending on how you choose to implement it & what your goals are.
Clear as mud. Right? ;)