Most reviews below capture the essence of Grudem's work so hopefully I will add a comment or two without repeating other reviewers' compliments.
First, Grudem quotes many of his supporting texts. This makes for facility, rather than looking up the text.
Second, he interacts with several traditions thoughtfully.
Third, as one reviewer notes already, he has a good annotated bibliography at the end. If one read the bibliography, especially our a-theological pastors, the health of the church would rise. He cites Reformed, Anglican, Lutheran, Baptist, Dispensational and Papist works (usually pre-Vat 2 Ludwig Ott and post-Vat 2 Prof O'Brien). Excellent bibliograpy.
Fourth, Grudem attempts to incorporate doxological intent to each subject by inclusion of an historic hymn at the end. This is healthy given the American penchant to think the church began 10 years ago.
Every evangelical seminary student should own and read this, of any perspective. Of course, for liberal seminary students, this might be over their heads and we would recommend something much shorter, maybe Berkof's Manual of Christian Doctrine---as a warm-up.
Thanks Wayne for your clear labor of love.