1. a 30 minute a day commitment is perfect — (i) you can always find that 30 minutes if that is all you want to de and (ii) if you want to do something else like, for me, rock climbing or cross country skiing, there is still time. When I did P90X and X2, I found that was all I did.
2. the variety in the workouts allow you to get good overall conditioning; I felt I was getting a decent amount of cardio and my core, upper and lower body muscles were sufficiently sore that I am confident I was getting a really good workout; and because of that
3. I am seeing some progress. In this phase, the main objective way to measure progress is by performance in The Challenge workout. In that workout, I did 20+ more pushups and 10+ more pull-ups over the course of the 8 sets on each during that workout.
So, all said, two weeks in I am loving it and it seems to be working.
As an outstanding issues, I am not seeing any weight loss yet. I had mentioned that I would like to lose 10 pounds, in order to improve my climbing. I knew this would be tough, as I have been the same weight for over 20 years and while I do have some weight I could lose, I don’t have a lot of excess fat (but i definitively have some). I have been eating quite well (for me) but am the same weight as when I started. I am hoping that I am putting on some muscle and losing a bit of fat and that weight loss will come. We’ll see.