For me, the best thing about them is their PVs. Most of her singles are catchy, but as Karen said, the only ones who blew my mind are Guuzen no Kakuritsu, Freedom and my well-loved Jounetsu no Daisho (

s). The rest of their single songs are good, like Drive away, Be your wings, Orion or Infinity, but I can't stand their album tracks, except maybe Winter Game D:
I want Freedom to leak now *-*