This book is concerned with guiding a variety of faith-based small groups, and will probably offer some good nuggets of advice for any of them, but in its effort to be broadly applicable, will not give a very complete image of how to structure or lead any specific type of small group.
The best value in this book for me was found in the profiles in the last few chapters about problem-people, describing both their potential motives for selfish behavior and giving some suggestions of how to proactively and lovingly deal with it. Though a few of these felt very copy-pasted, others were very insightful for the common group leader.
Overall this just feels like a counseling screen applied to a small group template. So though it offers some useful advice, it doesn't really keep the rhythm of discipleship that I believe ought to be at the center of most Christian small groups. It also gives such an abundance of advice that it makes the concept of being a qualified group leader or member feel daunting or even inaccessible. As useful as the counseling tips are, I believe that the operation of the church is much simpler, and items of grace and repentance really can be worked out between the Church, the Spirit, and the Scriptures. The rest (including so much of this book) is icing on top.
I'm a Small Groups pastor and will pull some things out of this situationally or topically to lead group leaders through, but it won't change anything about the core values of our groups or the vision for the ministry. A decent tool in the kit.