Has anybody done the PCC interview prep for AC and was hired. Just wondering how it helps and what exactly they go over.

I used it, and it worked great!

they go over everything, what to wear how to conduct yourself, the interview, the tests.
they claim %100 success rate, so its cheap insurance.

I would bet their success rate is more like 1 in 3.

Its a good prep for the interview but not for the MMPI, TQAS, or the cog test.