I just love Step Jump and Pump! I think the cardio is a great mix of step and floor cardio and I like the weight segments.
While definitely a not hard core weight workout, you will still get some benefits from weight training.
It is a great circuit workout, but the first two cardio sections flow from step into floor cardio, so you get a good solid cardio workout before the circuits begin.
I use it as is all the way through and I have never done any of the premixes, although they sound great.
You can also alter the sound to louder music, normal, or vocals.
I am music driven, so after learning the workout, I always use the music louder option.
And there are not push ups for chest work -- a welcome break for me since I hate pushups (but I do them).
I would buy the workout for sure -- it's fun, upbeat, and I like the music.