I can't say enough good things about QCDC! They offer an array of classes throughout the Charlotte area (including different types of classes each night in different locations so if you can't make it to one there is another going on either at that time or within an hour).
I've done the zumba class and have had such a great experience with it. The instructors are high energy, explain the moves and are positive influence which in turn make you have a good time and get in shape. I love how I can go to their classes and burn 600 to 700 while having fun, you can't beat it.
If you go to their website, you can print out a coupon for a free class if it's your first time going or you can use that coupon to get 5 classes for $25. If you haven't checked out QCDC, what are you waiting for?