I started using Cathe tapes about 4 years ago after the birth of my 2nd child. I found the tapes challenging, but once you got the hang of the steps it was the best workout I've ever had. Now I'm loosing weight again and I have purchased the new cathe videos and again I am not dissappointed. you can modify any of the moves to a lower impact if you are very over weight as my self, but stick with it the pound will start to melt off and you will enjoy your workout. choose cathe' tapes you won't be sorry.