Apress sent me a free review copy, so I took a quick look through it at lunch. I've used full text a few times and know the basics, but I'm far from being a power user. The first chapter seemed kind of dense, more about the internal process than I cared about, but the rest of the book looked good. From basic set up to administration to really good stuff like building a Google-ish interface to FTS, all looked good and reasonably easy to understand.

Learned a few things (and probably a lot more that I would learn if I gave it the time it deserved):

• Polysemy - words and phrases that sound the same but mean different things depending on context/background. The example they gave was Tiny Tim.
• Recommends that the unique index on your table be an integer, otherwise it has to create a mapping table internally. Strange, but good to know.

I think it's worth having if you're doing full text stuff.

Disclaimer: I know Michael from SQLServerCentral.com and the PASS Summit, so I'm mildly biased.