It's hard to say anything that hasn't already been said, so I'll keep this brief.
The show has potential, but its appeal quickly diminishes. The music is great, and the art and production quality are impressive. However, the story is a chaotic mess (literally the best way to describe it). The show also tries to make light of pedophilia, rape, sexual harassment, etc. I don't mind some ecchi content, but this show handles it terribly.
I summary, the show is pretty scummy, and other reviews have already covered it extensively. Bottom line, if you've read through my rambling review, you might still want to give this show a chance. If so, go ahead and watch it. Good luck.