If you just want to look good, be muscular, etc., I don't understand why it's necessary to take a novel approach, ex: jumping from slow-tempo pull-ups to some sort of plyometric movement. For starters, the everything AND the kitchen sink is not the best approach for hypertrophy. It actually works against it by establishing competing goals.
Please understand that I'm not attacking users of this product. It's just that the results the product promises can be had with a MUCH simpler approach. And I would say the same about P90X.