OMG! I just got this in the mail today! Just doing the basic workout had me sweating! This is so much fun! I'd rather do this than yoga or running any day! I did about an hour and 30 minutes of this and the only reason I stopped was because I have homework to finish lol. I'm trying to lose weight and get toned so I'll post a few months into using Zumba. So far it is great! Oh yeah a friend and I invested together so we each paid half, so we can share the videos, and meet 1 day a week to workout together.