I have read the book. It is interesting, but not a lot of new info. It was laid out in an easily digestible way. I enjoyed it.
I think it would work well for weight loss. I do think the protein and carb intake are higher then necessary on training days and carb cycling too often. I may give it a shot though to see if I can put on some lean weight. I want to see the forged training regime in detail, but I won't pay for it.
I had been carb cycling for a few years. Low carb 6 days with a carb reload one day 150-200g. Just the last two month I have been straight keto. Also, doing intermittent fasting one or two days a week( 18 -20 hour fast creating a limited feeding window. I wanted to see how I felt. I will probably go back to carb cycling to keep my bodies ability to utilize both fuel sources efficiently.