At first, I didn't really appreciate the principal character, (I find that kind of character with that extroverted personnality too off sometimes compared to how extroverted people are in the real life, considering this is a story based and inspire by our real world.) but it gets better after a few episodes, and we discover a protagonist smarter than we could think off, and able to think, ask and listen the other characters and act in consequences, a good point that sometimes is missing in that kind of show.
Overall it was a pretty good anime who also have good songs, it was an important point since the plot turn around music groups.
The main story is a bit already seen, but it was still great to watch, the side story are really cool, it almost make me shed a tear in the lasts episodes, haha.
So, it's not the anime of the time, but if you like that kind of little story with no fuss, I think you will like it!