I am somewhat new to Cathe. I had purchased a couple of her videos a while back but then started doing the firm videos, which were not giving me any results, so now I am back to Cathe. Her videos seem to be more eased and definitely with better form. For my cardio, I am running 4 times a week for 30 minutes, but I just purchased the high step challenge because I need some type of strength training and toning. Is this a good choice or does anyone have any recommendations? I also have the pushpull/supersets. Thanks.