I give the McGraths props for deconstructing Dawkins in a very polite, intellectual manner (most of the time). The barb near the end - is Dawkins so strident an atheist because he's losing faith in atheism? - was gratuitous and a moment of WTF.
McGrath does take the standard position that atheism is simply another form of religion, which doesn't sit right with me. When taking apart Dawkins' points that religion leads to violence, the literal interpretation of Scripture is ridiculous, etc. McGrath seems to fall into the No True Scotsman argument.
So although this was a more "elevated" read than if Ray Comfort had penned The Dawkins Delusion, I think he still missed the mark on several points. But read it for yourself (after reading Dawkins' book) and decide.