I think the OP means Zumba
I've been taking it twice a week since the beginning of January. I LOVE it. It's a great work out, and I sweat more doing Zumba than I did when I ran 5K!
Alot of the fun of it depends on the instructor. Mine is fabulous, but I did go somewhere once where the instructor was a bit ho-hum.
It takes a little bit to follow the moves, but once you've got it, it's not too hard. There is a lot of twisting, turning and jumping involved, so if you have bad knees, you may want to figure out how to customize the moves so you can do them with minimal knee pain. The best part about it is that as long as you are moving, you are doing it! You go left when she goes right? No problem. Can't figure out the cha-cha? Just fake it. They just want you to MOVE and have FUN.
I have not tried the DVD's, but for me, sticking with a program means I have to GO somewhere and pay for it! That's just the way I am....
I have not lost much weight, but I have gained confidence. I need to work out more than 3x a week which is what I am doing right now. Until I work out 5 or 6x a week, I don't think the scale will move much. I'm only 10 lbs away from where I should be, so those are always the hardest pounds to lose!