A very sound and useful commentary. Achtemeier coherently lays out the various interpretive options for each passage and then clearly presents his own critiques and arguments. He deals extensively with the original languages and textual critical problems. He gives a fair reading of the text, and his footnotes and excurses are as helpful and informative as the rest of the text.
The weakness of the commentary, however, is it's failure to engage theologically or pastorally with the text. The commentary is phenomenal in dealing with the technical details of the text, but leaves much to be desired in the realm of theology, applicability, and appropriation for the Church today.
Nevertheless, this is an excellent commentary, and I highly recommend it for those wanting to better understand 1 Peter.