I really liked this. Some of the lyric sync about halfway through the video (1:28 - 1:42) felt out of place though. You probably should have cut that entire section of the song out since it really didn't match up with your theme. But this was still a really good dance video overall. I'm gonna have to force myself to watch the rest of idolmaster. The dance scenes are awesome.
Holy crap, I originally didn't want to watch this because it looked so frilly, but that was really awesome. This one somehow stands out in the genre of dance AMVs for me, I don't know why. Great sync, and I seriously had a smile on my face on some parts for some reason.
-goes and watches some Berserk to gain some of my manliness back-