Short review: This book is ok, but not great. It is primarily focused on the wrong things in my mind. Most discussion about the trinity is focused on humans and human salvation and the limits of what humans can know about the trinity. It doesn't touch at all on the social aspects of the trinity or explore how those social aspect should impact our ecclesiology or other human relationships. There are several good quotes and a couple of good ideas, but on the whole it seems to be a miss.
My longer review is posted on my blog at http://bookwi.se/our-triune-god/