I agree on the music. There are a few songs on the cd where the voices are more in line with the music, but a lot of it is the "cute" squeaky anime voices matching the image of the girls in the video. I find it annoying. The lyrics are probably also not my thing although I don't know more than five words in Japanese. Other than Babymetal Death, the only other English title is Gimme Chocolate.
If I was into anime, I would probably think it was great.