Fran, I'm glad you found an instructor you click with, as I'm a big Kelly fan also.
I'm always a bit puzzled by so many comments about 30 Minutes to Fitness Kickboxing as being too choreographed and difficult to learn. Kelly's combos are short and repeated for two minutes, and then you never have to do that combo again. There's a tutorial where she shows you each combo at half speed, plus a small pop-up prior to each combo to remind you what's coming up next. The second workout took me a bit longer to master than the first, but neither of them are what I consider "complex".
I sold Kelly's first step boxing DVD (and also Ready Step Go), not because the choreography was complex but because of the lightning fast tempo. It felt frantic to me.
Now Amy Bento's kickboxing DVDs are to me, complex, and I never can figure out her cueing. But many here just love them. I've given up on them (Amy's kickbox DVDs, not VFers
).