While all of this was good, for me the middle chapters landed best: somehow Clowney's commentary here felt like it matched the enthusiasm and thrill of Peter's letter better than some other sections of the book did. That's a very subjective take, though. As usual with the BST series, I especially appreciated Clowney's pointing out allusions to Old Testament passages as well as New Testament parallels; it's both encouraging and exciting to see how the different parts of the canon fit together, and how the presentation of the gospel by Peter complements that by (for instance) Paul. I also liked how Clowney brings up points from the Gospel narratives to shed light on how Peter's own experience informs what he says in his letter. It just all helps create a more well-rounded picture, especially as we, or at least I, tend to read books of the Bible in isolation.
There were some points of the exposition here I didn't agree with, e.g. Clowney seeming to take the command to submit to earthly authorities as still allowing for resistance to very corrupt governments (I don't see how you get that from the passage), as well as his treatment of the office of elder in a short appendix (citing passages that aren't referring exclusively to elders but to the gifts given to all believers). And I'm still scratching my head over the passage about Jesus preaching to the spirits in prison (!).