Just started week 3. Glad the routine changes some next week, as it's getting to be just that - a bit too routine. Last week was a slow one, only lost 2 pounds, but have dropped about another 1/2" around the waist, face is noticeably thinner, arms and back have picked up some definition, and the routines are getting easier. Not as gassed on a lot of it, fewer breaks to "catch up", and went from being able to do only a few reps of some pushups to about 10 of everything, including wide-grip, standard, military, decline, etc, aside from the "diamonds." Still can't do pullups to save my life unassisted, but use the chair to get me over the hump, then lift my legs for the rest, so even that's already improving dramatically.
Most importantly, I've learned what I can and can't do injury-wise with the bad shoulder, and the hip-thigh joints that pop in and out, and adjust the routine accordingly. I'm at the point where I want to start adding the extra cardio routine to the mix just for that little extra on certain days, and to replace the yoga. Always feel just a little sore every day, which is the way it should be. Metabolism is through the roof, as I'm perpetually craving small meals as well.
One thing I like about the videos in particular, is as corny as Tony's comments may be, listening to him correct the posture, etc. of some of the demo P90Xers makes me catch myself doing the same thing, and when correcting it, I can easily tell the difference.
MIAF has lost motivation already since she has zero upper body strength whatsoever. I think the ability to not skip days and stay motivated is the most difficult part of the entire program, but I haven't been cheating so far. I missed two days due to a scheduling conflict, but made them up the following morning in addition to the scheduled workout.
242 days to go until my friend's wedding!