I've speculated previously that the increasing tension among reformed, conservative evangelicals over the church's mission may lead to a deep fissure between those who otherwise have much in common theologically. As this conversation points out, when you start talking about the church's mission, you inevitably wind up in a difficult conversation over soteriology, ecclesiology, and even eschatology—just not the "Left Behind" kind.
A big part of the trouble here is that far too often the debate is cluttered with flimsy exegesis. That's why I'm looking forward to reading this book. Back-of-the-book endorsements sometimes skew towards hot air. But scan these comments and you'll see a consistent emphasis on Gilbert and DeYoung's sound exegesis. And take a look at who's saying those things, and I think you'll find the sort of people who know what sound exegesis looks like.
And by the way, for the next couple days you can get an outstanding deal—about half what Amazon's listing it for, with a special quantity discount if you want to create a good discussion among your elders, church staff, or missions team.