I used to be a fan of similar books, though I have not read this one. However, I find that these books leave us to self-religiosity off of select scriptures and diminish the true Gospel. Sure, we should be helping the poor, the downcast, the crippled, as Christ did. But Christ didn't call us to religiosity. He called us to call sinners to trust in the Gospel of Christ to bring glory unto Himself and God.
I've read things like "Crazy Love," "The Irresistible Revolution," and "Rich Christians in an Age of Hunger," (I even went to Francis Chan's church for awhile when I lived in California) and I agree. We should love others. But love consists of sharing the Gospel of Christ and everyone functioning as one body. It's about preaching the Gospel to the lost and the Spirit of God convicting the elect and bringing them into the Kingdom, it's not about making the Earth a better place before sending people off to Hell.
I find, in my case, these books just lead to legalism, not to a Christ-centered, Christ-exalting, Christ-glorifying salvation. We are not all evangelists called to give up everything. Good grief. The Old Testament is FILLED with rich, godly men. Ironically, people think we can get people to "see Jesus in us," when the world doesn't even see Jesus in Jesus!
These types of books have frustrated my assurance immensely, and I find so many people just say, "Wow, that was really convicting." Then they go, and do nothing about it. Or if they do, it lasts for a short while, and then they stop. But never anything lasting. Sure, maybe 1 of many do. But I just find the Gospel in these books very humanistic and do-it-yourself with very little emphasis on what Christ did for sinners on the cross, and what His obedience actually accomplished, rather they tie up heavy burdens, hard to bear, and lay them on peoples shoulders, but they themselves are not willing to move them with their finger.
But maybe I'm just a rarity.
If this doesn't apply to this book, I'm sorry. But I've read so many books that sound similar to this. Perhaps it is foolish of me to respond without even reading the book, but I care too much about my soul not listen to a legalistic gospel message, again.