All you have to do is follow the plan. That's the beauty of the 21 Day Fix programs!
So here is my list of positive benefits you get from following the program:
1. You can trust that doing the workouts in the order they were designed (according to the calendar that comes with them) will change your body. Period. You will see results!

2. Can I just say "color coded containers"?? I mean, how much easier could it get?

3. Shakeology -- we all know quick and healthy are NOT synonymous, but Shakeology is the one exception to this in my opinion. Shake it up and go, and you are really getting the healthiest most dense combination of nutrients I have ever found. And it's only $4! (get Shakeology here)
4. There are endless resources online for tips, ways to modify and recipes that fit in the guidelines of the nutrition plan. Just search "21 Day Fix" on Pinterest and see what comes up!
Here are the cons:
1. It takes work. But so does anything worth having. You have to set aside that 30 minutes and get it done.
2. Meal prep - if you cook all your food at once, it saves time in the end and makes it so much easier to follow the plan. This was a "pro" for me because I like learning and trying new things. If you absolutely hate cooking, you may not like this, but you can learn! And there are lots of sample meal plans on Pinterest as well.

3. Your clothes may not fit when you're done, so you might have to go shopping ;) But hey, if you can afford a few new pairs of pants, I think you can handle this one!