Hi,
I have Rhythmic Step and Step Works. I haven't done Step Works for awhile, but I think it's a typical Cathe step tape (a lot of moves you've seen), still very good though. But not my fav.
I just got Rhythmic Step, have done it just once, but I love it! It's around 45 mins I think (3 step sections, plus you do the all 3 step routines over at the end; not including warmup/cooldown). It was such a weird feeling to be a clutz again! The choreography is different- some new moves. But it's not so hard that you'll be frustrated. In a few trys, I think I'll totally get it and love it more. It was fun- get it if you want something new and have a lot of her older videos.