Within the URL by Lane Chaplin, there is a 36-minute review of Warren-Pipergate by White Horse Inn--with Mike Horton, Shane Rosenbladt, and Kim Riddlebarger, Confessional Churchmen.
Also, within the URL are three radio interviews between Phil Johnson (a MacArthurian Anabaptist) and Chris Rosenbrough, a Confessional Lutheran.
Parts two and three of the radio interview can be followed by the link.
Both Warren and Piper, in our estimation, are vastly over-rated, over-estimated, over-published, and are quite underwhelming in view of the Bible, the Prayer Book, the Reformed Confessions, and a good library. We feel this is important since these two, among others, devour so much oxygen in the room at the expense of better sources.