I literally just purchased this yesterday and only used it to make sure it worked and it did. Beyond that I don't (at this time) have an opinion about how well it works or any other information to add other than that. I will add though that I honestly feel I got a better deal buying it in a store versus the website, it came with 4 resistance bands, the yoga bands (is what I believe they are called) and a exercise chart too and for the same price and I didn't have to wait for it. After some time of use I'll come back and give a better review of the waver, if that’s possible.
We just got this machine but love it already! I was feeling groggy and foggy one morning and used it for the first time. It helped me to feel refreshed and more alert!