There are books that often lack some good conclusions, or unfairly compare theologies or ideas, but the is one book that I wish every believer could read and re-read. (I am in my second reading and still soaking in the wonder of our union with Christ. I give it a top rating for a superb approach that takes on a topic that seems simplistic but looks in all the corners for the mystical views, the heresies, the side-tracked views and the Reformational Concept (which is the basis of this book). The WWJD fad sadly exists still today and this book (without directly addressing the fad) shoots a lot of justified holes in the WWJD fad by pointing out that Jesus is NOT some separate entity that we are trying to figure out what He would do and then go our own ways (in our own merits) and imitate Him. This books is rich (and I mean RICH) with Scripture and theology, and thoughts on the divine union we have in Christ and Christ in us. I loved nearly every page of the book and looking back it seems I highlighted over 1/3 of the book with the great quotes, the systematic theology, and the notes.
I do not remember a Bible or seminary course that taught me as much about our union with Christ as this powerful book does in one volume. I think if each Christian were to read this book (and even teach it in Sunday School for Adults and youth) we would have a Church that understands the wonder and joy and mystery of the divine Trinity at work from Father, in the Son, through the Holy Spirit. This is "chart-topper" book. Some people may find the reading a little tough at times and may not know all the fathers of the church, but that is OK. The author does a very good job in explaining their views and even where some solid teachers (Luther and Calvin for instance) differed on their points of understanding and yet those difference are used to bring clarity. Buy the BOOK! Teach the concepts to your church. Live the Union with Christ!