That's a pretty difficult question ....since it's all in what you put into it and there is someone doing a lower impact version and then others adding the impact, jumps, etc.
Let me just explain where I'm at in my training right now. I'm advanced and in great shape these days. For the past 2.5 weeks, I've been working out like crazy (lost my job). I've been averaging 90 minutes of cardio on my cardio days (mostly starting out with Cardio Coaches) and on weight days, I've been tacking on lower intensity cardio and moderate workouts for any where from 30-50 minutes. Instead of takng a rest day on my Saturdays, I've been doing lower intensity step (learning dancy step ...etc.). Well, I popped in Level 2 of Hip Hop Abs on this past Saturday which was like a recovery day.....and it was a bit too much intensity for me, so I popped the level 1 Hip Hop Abs in and it was much better. My HR was probably low to midrange -- 125-140 and hit 150 a few times, but I kept an eye on it and lowered my intensity.
So in summary, you could probably get a pretty good moderately intense workout, as long as you're good at using big movements and experienced with what gets your HR up. I suppose if you just wanted to veg in your comfy clothes, you could pop the Level 1 one in and follow the lower impact version.
The only thing I really don't like is that it cost sort of a lot to get the entire package and I don't really think you got your money's worth. Also, the weight/cardio DVDs (which I haven't done yet) probably wouldn't get you that sore if you're used to lifting Cathe weights. I use the Turbo Jam ones with weights sometimes just for a change and I usually don't get sore. I guess it would make a good add on to another workout though. I've yet to try this yet....but I've been thinking about it.