Now you can get each CTX tape separately! Their choreography is simple to complex, but the cardios are short enough that they're easy to master after 3 workouts in my opinion. Yes, IMax is simple if you ignore the turn away from the TV at the beginning.
Step Heat and Step Max are a little simpler than the average Cathe tape. One tidbit for you: once you master one tape, the next ones are really quite easy! Cathe is consistent and an excellent cuer! Rhythmic Step is so fun because of that.
Also, when your cardio condition is good, you can concentrate on the steps without being distracted by tiredness. Another reason to go straight to IMax...
-Connie