So I don’t know much about Weather Girls, but:
1) I can see why they’re debuting in Japan.
2) Their legs are amazing.
3) I can’t tell yet how hot they are, because I may be blinded by the Cheerleader Effect.
I will say though, that on the strength of their first two videos, they look and sound better than the typical idol drab, despite being rather typical themselves, if that makes sense.
Take that how you want.