To get a better sense of the value, you may want to look for broader discussions on forums that focus on the specific educational organization (e.g., Catholic Heritage Curricula) that produces the "GDFE" (Growing in Faith, Growing in Education) materials.

Evaluate if the reading level and tone are appropriate for the intended student.

If you can share the or grade level of the GDFE material, I can help you find more specific user feedback on that particular curriculum.

Because "GDFE" could refer to specialized or proprietary curriculum (such as for religious education), the sample pages are generally intended for previewing content, teaching style, and formatting before purchase rather than being a product aimed at general public review.