I wished someone handed me this book years ago, when I moved to the UK, because I would have gotten my foundation amateur radio licence much, much sooner if I knew how simple it was. I have a similarly leveled licence from Argentina (LU5ARC) and it was much harder to obtain.
I found the structure of the book a bit erratic. Some chapters are formatted much different than others. I didn’t find this to be a problem though, just surprising. The content is generally covered well and I think people with no knowledge of electronics or radio could read it and understand it all.
I guess you could say the proof is in the pudding and whether I’ll pass the test, but being that I already took ham radio courses and I’m an electronic technician, me passing the test is no proof of the quality and usefulness of this book.