From an anonymous Catholic:
A solid apologetic in a contemporary style that sacrifices nothing. Excellent research and documentation is presented logically. I will return to this book often. While I appreciated Karl Keating's book, I found Armstrong less anecdotal and more substantial. Another thing I appreciated was his thoughful and accurate representation of Protestant positions on doctrine. There is no sense of better-than snobbery, only attention to detail that, while clearly presented from a Catholic perspective, invites the reader to think their own thoughts and arrive at their own conclusion. At the time I first read this book I was most interested in the very helpful chapters relating to Mary and also to the Eucharist but the whole book is excellent.
My info-page, including Introduction and excerpts
You can purchase this book, along with ten others of mine, in electronic format (Word or PDF) for only $25.00. The "deluxe" version of Biblical Defense included in that deal has many internal links, making it very searchable and convenient to use for apologetics, and also indices that aren't even included in the paperback version. I make more royalties in selling my books this way than I do from 15 sales of this book in paperback. And you get a whole lotta material (over 22oo pages and 5.5 MB) for a very affordable price (only $2.27 per book).