That workout really kicked my butt.
Before, doing the other one, I would sweat, but this one had me pouring sweat.
I couldn't keep up with it all. Specially the first part w/ the knee lifts, but I tried. I had to stop multiple times to catch my breath and to rest my aching legs, but I kept up better than I thought I would.
I really need to work on my flexibility though. God I hate that strain... HATE IT. But so many of the warmups requires you to be somewhat flexible and I'm just not. I'm slowly trying to improve it, hopefully that little bit I am trying helps.