Love this series of scripture companion books. My way of using them is to have it alongside my BOM, and first read the chapter introduction, then read the whole chapter in my scriptures on my own, then go through the author's commentary on that chapter in this book. In this way, since the book includes all the scriptural text verbatim, I essentially read each chapter twice in a row, which I find is good for me. The first time through, I mark and note things that personally speak to me. During the second go -through, I notice things that the author points out which I may have missed.
I feel like this approach helps me to gain a fuller and more complete knowledge of the Book of Mormon, and while I probably won't reread these much, they're super helpful to go through nice and slowly at least once.