@ The PB: http://www.photographyblog.com/reviews/pentax_k3_ii_review/
Whilst PB has been positive about the AF performance of the K-3II, our respectful PF, on the other hand, has found something opposite, see:
http://www.pentaxforums.com/reviews/hd-pentax-d-fa-150-450mm-prelim/focusing.html
Quoted, "Although on paper, the Pentax K-3 II promises to bring undisclosed improvements to AF-C performance, we did not observe any evidence of faster focusing, lower latency, or quicker target re-acquisition with the K-3 II."
So, whom should we believe after all? ;-p