YAYYY :DD! I'm so happy that they won; they haven't won a Mutizen in ages (3 years o__o) and I was getting so pissed off at that lol.
I think Japan has done the band some good. I can't talk about the other three, but Seunghyun has definitely become more confident and his rapping live has improved, and Hongki's singing became even more awesome, if that's even possible.
They also did the Copyright Song, which was cute keke.