Short review: Good overview of TULIP. If you want to know what are the basics of Calvinism, this short book does a good job. But it also mischaracterizes a lot of what those that do not agree with Calvinism actually believe. If the author could either just say what he believes without comment about others or do a better job honestly and humbly understanding disagreements it would be a better book. Many of the complaints he has with Arminianist (about how they read scripture or do theology) he does, just at different points.
Full review at http://www.mrshields.com/what-is-so-great-about-the-doctrine-of-grace-by-richard-d-phillips/