I bought this set to use as I was getting back into exercising after my hysterectomy in December. I do like them but I was bored right away. I did add other workouts in place of some of the PY - mostly other Kathy Smith's. I still do them every once in awhile. I like Kathy - I just can't do the samething for that long. I know I did the Slim Series for four weeks and was burnt out from it. As long as I'm rotating my Tae Bo I'm fine though
Rachelle