I've been going to Zumba for almost 12 weeks now (2 days a week when I can that is). We have people of all ages, shapes, coordination levels. You names it, they come to the class. We have a blast. But since starting Zumba, watching what I eat, uping my water intake; I've lost 15 lbs. I've also started working out on the elliptical 2 days a week and trying to do about 3-4 miles as well. But, in those 12 weeks, 15 lbs. I love Zumba. I feel great when I am done and I feel like I get a great work out. And I see the results!! I've recently added light weights to the Zumba as well. I have 2 lb hand weights (each 1 weights 2 lbs) and 2.5 lbs ankle weights (again each is 2.5 lbs). I got them at WalMart. I've notice that I sweat alot more and I feel like I am working harder, but I am toning my muscles. Just some ideas.