I did this one just before I left for a conference on Tuesday.
I like it overall.
My first impressions:
It's good that Kelly's moves are fairly athletic and simple, because her cuing is pretty spotty.
I like that she combines punches other than the typical "jab, cross, hook, upper," but do wish she's cue them more, since they are atypical combos (like "hook, jab--which she calls 'punch', hook, upper").
Some of the vertical step moves were done in a way that really pushed the limits of my front-to-back space: I wish she's kept them more 'side-to-side'.
I'm not fond of the ending core work, where she kneels on a 1/2 foam roller. I first tried it on my 1/2 foam roller, and my knee felt like I did something to the bursa! Then I decided to use a balance disc, and it wasn't much better. I think next time, I'll do this while seated on the floor with legs spread in a 'v,' or seated on a stability ball (both of which will serve the purpose of keeping the hips still, but won't risk knee injury).
Overall, I like the way Kelly fuses step and kickboxing.
I felt the workout was similar to the first, not noticeably a lot slower, and didn't seem like a redo of the same moves. It was pure cardio--with the exception of the short core segment--and the step-cardio segment was about twice as long as the one in her first step-boxing workout (almost an hour of cardio).