"Mastering FreeBSD and OpenBSD Security" -- worth reading?

[Matthias Kilian <kili_(_at_)_outback_(_dot_)_escape_(_dot_)_de>]

Hi,

did anyone here allready had a look at this book?

http://www.oreilly.com/catalog/mfreeopenbsd/index.html

After having read the sample chapter available for download, I'm
not yet convinced that it may be really interesting, and from the
title, TOC, and the reviews O'Reilly mentions[1], one could guess
that it's just some kind of HOWTO collection separated for FreeBSD
and OpenBSD.

TIA for any *serious* review.

Ciao,
	Kili

[1] For the "reviews" at oreilly.com: the first one made may day
("BSD distributions of Linux").