Good Lord!!!!!! YES it works
I have it on the middle level and let me tell you, first it was my back then my mid section then my A$$
I have been using it everyday/
I can take pain, I run 3 to 4 miles a day, but this thing really gets those muscles you didn't even know you had
It works, but if you feel pain after (which you will) unless your a weight trainer
stop and wait a few days for the pain to subside then start again, after awhile your body will get out of shock mode and you will be ok
