I loved this show until McAllister was Red John. Think how cool, calculated and fearless Red John was being portrayed as with unlimited resources, influence, etc. Jane's true equal in every way, someone high up in the "company" with real power, thats the red john i wanted Jane to overcome, instead we got McAllister, someone who was none of that even to the point where he ran from Jane and was snivelling like a coward to spare him. The end of the show wouldn't have been a total disappointment but the Red John reveal ruined the show and it became obvious that seasons 6 and 7 were there to tie up the lose ends.
Real Shame - could have been one of the best shows ever.