It's a catchy song but I find the melody and arrangement too western sounding for my liking, not a fan of the "wow'ing" by Moa/Yui either - but I'm sure their western following will grow even more with this.
Personally I would like Su to continue Babymetal with the Kami-band as an officially part of the group (should probably change the name as well). I want Moa to be in a idol group, she has the perfect idol personality, Yui could be a choreographer for Amuse working with Mikiko.
But that's just me being contrary