This chapter aims to resolve the question posed in the title: is Article 5 an inconsistent patchwork or does it retain the substance of true doctrine? A number of issues are considered: doctrines that have not been covered, ambiguities, duplex iustitia, reliance upon the testimony of works, the nature of justifying faith, and the role of fiducia. Then the initial question is asked in turn of Melanchthon, Bucer, Calvin, Contarini, Gropper, and Pflug. The conclusion is that the article does retain the substance of true [Protestant] doctrine. Then it was asked why many Protestants did not recognise this. The article is also assessed from the perspective of the differing concerns underlying Protestant and Catholic doctrines of justification. Article 5 was not a merely political manoeuvre, but represented a genuine meeting of minds between Bucer, Melanchthon, and Pistorius, on the one side, and Contarini, Gropper, and Pflug on the other.