I order this about a month ago to see if it be worth the hype behind the commercial for it . plus , I really do not have a gym to go to regularly , so this look like a good way to stay in shape . after use it for a month now , it be a good workout . the 6 minute routine dvd that come with it leave you sore and feel a nice pump that give you some energy . it do take a litte adjust to , as at first use the Shake Weight do feel awkward and almost like it be not work properly . however , after use it more and more , I find out that the more you shake it , the easier it get to use . and , you can tell if you be use it right if it make a loud noise -lrb- surprise , surprise , a shake sound -rrb- . overall , if you want a fast , effective way of work out without gym time , this be a decent alternative .