Pioneer and Priest: Jesus Christ in the Epistle to the Hebrews.
I reviewed the book last July here. My review gives a more thorough overview of the book, while Mike's review appears to be more critical than mine. I agree that the book is hard to classify genre-wise; I consider it to be a commentary-like monograph. I also agree that a weakness of the book is the failure to give adequate treatment to chapter 1 of Hebrews. I also agree that I would not use the book as a stand-alone textbook for a course on Hebrews; it would need to be supplemented with additional materials.