Yep. Nothing wrong using it for badminton. Only that it had less cusioning than yonex shb 01 ltd. What you gained in return is the lightness
I use the gel rocket 7. To me, they are much more comfortable than yonex shoes. The cushion on the heel is a lot softer and provides more support.
But for now I'm looking for a bigger one to replace it. Although it is Euro 46.5 size, it is still too narrow for me. If I get something like mine but more wider it will be perfect for me