This is the latest "gateway" apologetics book to hit the market, and it doesn't look half bad. I'd like to be more specific, but the bulk of it -- in line with Groothuis' own expertise -- is philosophical in orientation, covering such issues as postmodernism and the theistic proofs. Beyond that the nuts and bolts type apologetics I do is covered in only 2-3 chapters -- one written by Craig Blomberg.
Appropriate to a gateway book, there is not much depth here, but there is enough that I'd definitely put this one in the basket with Strobel's as "best in show." The one drawback for some: It's a monster in size, and therefore not easy reading. It may have been well served as 4 volumes, and it's presentation style is not that of a reference book as its size implies. Still and all, count this one as recommended.