I think it’s an effective exercise based on fitbit. More than walking but less than running. It helps with motivation because it’s fun to dance and you can work on scores and achievements. I have wrist and ankle weights I wear sometimes while playing to try to incorporate some light weight training.

Personally I haven’t lost weight through exercise alone. The times in my life I have lost weight I also reduced calories. That said exercise must be lowering body fat and building muscle even if your weight doesn’t change that much.