I've not actually used this with our daughter yet, but here's my impression. We have used the other Apologia notebooking journals. This one is in the same spirit as those, just varying in the content. This journal has a wider variety of activities and the pages have color print and photos. It's more eye-appealing than the science notebooking journals.
The most important factor is the content--the Biblical worldview on which we as believers must stand--no exceptions! This printed notebooking journal compliments the book and provides an additional experience for the students to process the key points/truths presented in the book. The preprinted journal makes it easier for the parent/teacher: the printing is done and the assignments are all organized and collected in to one spot. Likewise, the student has all (or at least the most) of the assignments/activities in one spot. The journal will serve as a keep-sake and a reference for the future.
This is a fantastic curriculum. My daughter is very artistic and this journal allows her to be creative. We are enjoying it immensely. The whole program, book & journal, is fantastic for solidifying your faith and being a critical thinker. I highly recommend it!