thinking about trying advocare

Hey guys I have been following MFP for about 3 months and have lost 9 pounds. I would like to be to my goal weight by summer (I need to lose 16 more pounds) I have thought about purchasing the ADVOCARE 24 day challenge to jump start my weight loss. I eat healthy and zumba 40 minutes a day. Do you think I should purchase it or just stick with what I'm doing? I don't want to "waste" my money but if I can lose the weight then it wont be wasted. Opinions please from people that have actually tried ADVOCARE.