So far I have completed 2 of 8 weeks in the 22 minute Hard Corps program, so I wanted to share my thoughts and progress with the program so far. The short workouts alternate each day between cardio and resistance training. and include moves like burpees, mountain climbers and Jimmie Jumps which are farmiliar from previously doing 21 Day Fix, InsanityMax30 and CIZE. Yet after 2 weeks, I have muscles and areas of my body that ache that have never hurt before. I'm amazed that a 22 minute workout can cause such soreness, but it can!! Especially if you incorporate the 10 minute Core workouts every other day as recommended on the workout schedule provided with the program. And no excuses...there are also modifications, so you can get started no matter what your fitness level. And if you are sore and need to modify certain moves you can do that too...just keep moving and push play each day! I purchased the deluxe kit as soon as it was released and less than 24 ...