My issue with p90x is time, the workouts are too long for me. An hour of full-body strength training would be realistic, but you don't need to work on 2 muscle groups for so long. (And do you really need to work for an hour on your core? I think not!) So I cut them down and I still get results - they have a tendency to do a series of exercises and then repeat that series a second time, before moving on to the next series. I usually just complete the 1st set then skip to the next series. This cuts the workout in half.
Not sure how advanced you are, but I definitely prefer Plyometrics over Cardio or Kenpo. I also customize the schedule to meet my needs - I like doing other workouts besides p90x.
I got this idea after reading about other people doing it - http://fitnesswithjessica.blogspot.com/2011/03/how-to-cut-time-on-your-p90x-workouts.html
But if you want to stick strictly to the program, more power to you!
"I have a personal relationship with food. I love it, but it's on the fence about me." ~Kathy Griffin
"If there was a famine, we'd be the last to survive." ~My mother
| current weight: 137.8