I hate to say it , since the commercial be so silly , but this thing really work . I have just be use it for a week and already my arm be more tone and less flabby . I do not know what they mean about a 6-minute workout , though , since I time the upper-body workout on the dvd and it be 12 minute . but that be still not much time out of you day for a good workout -- you just have to make sure you do it every day to get result .