This book suffers from two obvious problems: the inclusion of only three views instead of four, and essays that are often too technical to be enlightening to the interested layman. On the other hand, this book boasts William Lane Craig and Greg Boyd, both leaders of their respective views, as contributing authors. The big name authors and the free-for-all debate style (each author gets and essay, followed by a short response by the others) certainly give this book some entertainment value along with high level discussion, so this book might be worth a read if you can get past its deficiencies.
The first problem is simple. Helseth and Highfield have the same view, which is divine causal determinism. Why some sort of 'simple foreknowledge' view wasn't included (shared in various flavors by Arminians, Catholics, and the Eastern and other Orthodox churches) is beyond me. There's no excuse for not including the view held by the absolutely overwhelming majority of Christendom in a volume like this one.
The latter problem is more difficult to pin down, but no less apparent as one tries to wade through the text. This book features a 'compare and contrast' approach suited for an introductory book, where beginners can read each view, read the responses, and then make up their mind. The problem is that this book is way too advanced to be intelligible by a beginner. Helseth's essay is the first, and arguably the most difficult to read for a beginner due to his use of niche theological vocabulary, which he doesn't define for the reader. Craig and Boyd contribute essays which are probably slightly too philosophically technical for a beginner, although to be fair, that's difficult to avoid due to the inherent philosophical nature of the views they espouse. Craig and Boyd's responses are another story. Expect a lot of highly technical philosophical bickering. Highfield's writing is by far the easiest to read. The heart of the issue here is that each author has two goals which are very difficult to reconcile: writing a clear and persuasive essay aimed at beginners, and writing a rigorous and technical essay to withstand scrutiny from the other authors. The latter goal almost always won out.
If you're still reading this review you've probably gotten over the two big hurdles, so this book might be worth a read for you. When I first read this book I was already fairly familiar with the views and vocabulary, ruling out the second hurdle, and I took the title at its word, ruling out the first. The second read-through many months later, I wanted to make sure I understood what was going on and relive the fireworks, and I decided it was worth the cost of reading the Calvinist view twice with Helseth and Highfield slapping each other on the back in their responses. Here are my thoughts:
Helseth's essay was ok, but could have been more readable while still retaining rigor. I thought Helseth could have more clearly distinguished his view from Craig's Molinism (Craig calls him out on this in his response), and Helseth's decision to declare the mechanism behind compatibilism as 'inscrutable' and leave it at that was extremely puzzling. Since Helseth is arguing from the wider Reformed tradition anyway, why not include a page or two on compatibilistic free will? The responses were mainly just standard anti-Calvinist objections, namely that human freedom is obliterated and that God's character is impugned.
I thought Craig's essay was surprisingly weak. His introduction to Molinism is alright; the problem is that he spends an astounding amount of his essay preemptively defending against open-theist objections. Everyone knew going into this book that Craig and Boyd would be the stars of this format, so perhaps Craig wanted to gain as much ground on his main rival as he could in his essay. Curiously, Craig barely mentioned the grounding objection to middle knowledge, and was hammered on that in the responses. Craig did have a section addressing the Reformed view, but it was limited to one particular objection and all of that objection's implications. I thought it was strange that he didn't give a more general defense.
I really do appreciate Ron Highfield, but he stuck out like a sore thumb in this book. His essay, while reverent, was lacking a fair amount in logical consistency and a bit in persuasiveness, and he was predictably shredded by Craig and Boyd in the responses. His view is basically the same as Helseth's, but with a different (and far more subjective, in my opinion) methodology used to arrive there.
Boyd did a remarkable job considering what is, in my opinion, the fatal weakness of his position, but his essay was ultimately unconvincing. He paints a very different picture of the biblical narrative than the other authors, but parts of Boyd's view are wholly unconvincing (see his 'character hardening' thesis, which get demolished by Helseth and Craig). It's a valiant effort, undone by fatally flawed view.
All things considered I suppose this review isn't too rosy, but the responses were better than the essays almost across the board. Craig and Boyd in particular get into it, and their back-and-forth is interesting if you can figure out what they're talking about. Those familiar with this topic and interested in what some influential evangelical voices have to say in an unusually candid format should give this a read. Readers who want a clear introduction to this debate should look elsewhere.