I've been meaning to read this book for quite a while (ever since Ally and I got married) and I finally got around to it. I was not disappointed. As always, John Piper analyzes the scriptures and brings home the most important (and sadly often overlooked in most marriage books) passages to what marriage truly means.
To be honest, the book made me think of Mark's sermon series and his message during mine and Ally's wedding. So much good scripture and the right perspective on what marriage should look like. Piper's book is very similar.
I also loved Piper's section on singles. He brought to life a passage about Eunuchs and the importance of what it means to be single and the reward awaiting them in heaven. Really impressive and important section. If you are single, you should really read those chapters. It will give you a whole new perspective on the stage of life God has you in.
All in all, it was exactly what I expected from a Piper book on marriage. Saturated with scripture, and analyzed amazingly throughout. I can't say I necessarily agreed with Piper's stance on divorce completely or how he dealt with that section of scripture, but that's the only critique I could offer for this book. A great read for all you married types out there (and singles as I already mentioned.