I thought that this was a really interesting textbook. The authors reveal the message of each Old Testament book, while discussing some of the scholarly issues surrounding each part of the Old Testament (such as the JEDP theory). Unfortunately William Lasor passed away in 1991, so Hubbard (who is dead now too) and Bush recruited six other OT scholars to complete the revision. This may be one of the reasons why the authors ride the fence on issues such as whether or not we can take the numbers in Numbers literally, the number of Isaiah's, the historical worthiness of Joshua and Jonah, and the happenings surrounding the Exodus from Egypt. The authors also seem to lean toward the book of Jonah being a parable rather than actual history, although they don't take a really strong stand on that, either.
The reviewer who wrote that this book supports the JEDP theory was mistaken: In fact, the authors predict that this theory will eventually be out of vogue with scholarship. What the authors do affirm is that Moses was originally responsible for the Pentateuch and that through the centuries, the community revised and updated it.
And contrary to an earlier reviewer, I didn't find the book tedious at all: It was very well written and very interesting throughout. I especially appreciated the articles at the end about the Authority of the Old Testament for Christians, Messianic prophecy, and the chronological puzzle.
In short, I recommend this book, only wishing that the authors would take a stand on some of the issues discussed above.