I did a round of this workout program in 2014. It is hard, intense and amazing. I lost 15lbs in just one round. Shaun T has lots of energy and doesn't mess around with his workout programs. I am a big fan of him. This workout program is short but sweet. You can always modify if you can't do the moves. I recommend this to anyone in the mid-level as it can be shocking for beginners and will just give up.
This review reminds me, I should do it again!