Wow there's a name from the past. MANY years ago I did Tracey Anderson step videos. At the time she was ok, I can't say as I would use any of her WO's now though. I don't know about any of her newer stuff.
I love Tracey Anderson and have gotten very good results from her Meta series. I did Omni. Don't scoff at the 3 lb arm work. Your arms are fried. Also she is not the same Tracey that had step workouts in the past or at least I don't think so.
I just went back to doing her w/o's again and wondered why I ever stopped. Whole different take on exercise than Cathe but no reason you can't enjoy both.