Never before have I so thoroughly enjoyed reading an intro-level textbook (for any subject), so much so that I read it cover-to-cover after finishing the course which required me to buy it! This blows other similar texts by people like McGrath and Karkainnen completely out of the water for one simple reason: the authors do not even attempt to hide their interpretations. In fact, at the end of each chapter, which provides the requisite survey of whichever theological topi they are addressing, the writers explicitly suggest what they see as a helpful step forward, and what they appreciate or even dislike about the tradition they just surveyed. This is a huge breath of fresh air in the world of systematic theology!
Furthermore, the writers are extremely thoughtful and thorough with their surveys (although one could argue that they could include more theology from outside Europe/North America, but this problem plagues all such theological writing), and the writing itself is accessible. I can't say enough about this book, and I think it should be on the shelf for every preacher, non-profit minister, and student of theology, both as a reference tool and as a masterful introduction to thinking systematically about theology.