It is probably significant that the authors are American and the arguments they refute are aimed by Dawkins at American fundamentalism. Dr. Dawkins himself has qualifications as a biologist, and I am told that his work on the development of the eye is well-regarded, but for much of the last decade and more, he's written little on the subject he is qualified to write about and much about Christianity and science. Dawkins' dislike of fundamentalist protestantism is clear, as it happens it is shared by Scott Hahn, who used to be one. Hahn is well-placed to show that Dawkins' real beef is not with Christianity, but with a particular form of it in general, and with the political influence it exercised in the USA in the 1990s and under George W. Bush. It might have been better if Dr, Hahn had focussed in on that, which is Dawkins' weakest point. Watching Dawkins and the Fundies bash each other is a bit like mud-wrestling: there are those who like that sort of thing, but the rest of us, Christian or atheist, might regard it as a curious way of passing the time.
Dr. Hahn shows what many others have commented on, which is that Dr. Dawkins is good on evolutionary biology, in which he has a doctorate, and less good on Christianity, where he has the usual middle-class English ex-Anglican attitudes; he thinks he knows what he remembers from his youth. Whether his catechesis was poor, or whether the Fundies are just such a tempting target he cannot help himself, Dr. Dawkins spends too much of his time on them. Hahn goes into depth on where Dawkins misrepresents mainstream Christian thinking, and it is well worth those who agree with Dawkins reading this and asking whether they (he and them) are in disagreement with Christianity, or just certain forms of it.
In the inevitable absence of proof that God does not exist (and I do wish more Christians would acknowledge Dr. Dawkins' humility here), Hahn can make hay of the arguments on the other side. Of course, as a believer, he thinks God does exist, but he might have acknowledged, in turn, that in the end this is a matter of faith. He shows that Dawkins' own atheism is a matter of faith, which is as true as the fact that Dr. Hahn's belief is; a bit of mutual respect might not have gone amiss, although in this area asperity seems the order of the day. The last part, on what a Dawkins state would look like is, like Dawkins' own work, a bit 'gamey' for my taste, but like Dr. Dawkins' work, good knock-about stuff.
In the end I gave it 5 stars because it is well-written and fun to read. It engages well with Dawkins, but I do wonder whether both sides could let up a bit and see that the other is not an Amalekite to be smitten hip and thigh?