I love my shake weight ! honestly one of the best -lrb- and quickest -rrb- upper body workout I have ever use ! I buy mine about a month ago . slack in the beginning , but I have be use it faithfully -lrb- once a day -rrb- for the last two week , and I have already see a difference ! I be a little upset that I do not do it everyday since I first buy it ! if you think about get one , definitely do ! it be worth it ! -lrb- head up : the dvd say six minute , but it be really ten ! -rrb- so what be ten minute a day ?! = -rrb-