Honestly, I was stoked to see this resource was out there and to get the one I did as quick as I did was a surprise! All the instructor field guides I currently have are each discipline specific and about a decade or so old. So to have a streamlined version all in one place will be a great asset.
They are great books and we gave one to each of our recruits and I hope to continue to do that for every recruit class.
The color coded collapse section is perfect for finding the right pieces!