The first two and last chapters were extremely helpful in articulating what a conceptual framework was, why it mattered, and how to develop one; while I've known about literature reviews since graduate school, Reason & Rigor deepened my mental image of these, as well as justifying the role of one's autobiographical stake in the research and ideological positioning in shaping one's research.
That said, the middle chapters with examples were difficult to follow and relate to. Especially since I am a beginning researcher, early in graduate school, I struggled to understand how the conceptual frameworks developed by people who've been in the field for decades, who create conceptual frameworks out of their prior research and theoretical structures, related to my own work, in its beginning stages. Also, while the examples are intended to be relevant to everybody, across fields, they're not really: more precise knowledge about currents and theories in education and policy research (the field from which the examples are drawn) is necessary to full understanding of the examples.