The main problem that I had with it was that it (mainly) felt like a musical without the songs. It would try, and occasionally succeed, to build up to some kind of emotional peak by creating some sort of small drama via dialogue. This would usually coincide with a performance which one of the various boybands is going to put on. Then when you're expecting someone to express their emotions by producing a nice ditty you're instead given a couple of characters having another brief conversation. If you're lucky you get a song played in the background.
When you are given an actual performance it's forgettable. Any large amount of movement is done in 3D that doesn't look much better than a PS2 cutscene. The still art is fine and I think the character designs are good, but there's nothing impressive.
The characters themselves are fine, if a little cartoonish, they're just given nothing to do. If the show was structured like a generic cute boys show where the characters react to a variety of setpieces (eg one day they go to the beach, one day they have a competition, one day they need to study for exams etc) I think it would be somewhat enjoyable, however every single episode that I can remember is just the characters preparing for a talent show, the result of which has absolutely no consequences. (Technically in-universe there are consequences, but as a viewer you know exactly what is going to happen.) At one point there's a bit of backstory that is much more interesting to me than the main plot, but this is forgotten about quickly.
Despite liking most of the characters I also think that there's way too many. If you halved the cast and gave the remaining ones more time then I think the show would be much improved.
A few of the songs were fun, and the voice actors are good. If you like cheesy Japanese pop songs then you will probably find a couple of tunes that you like. However it would probably be a better use of your time to either just listen to the music separately or watch the voice actor concert.
It's not the worst thing that I've seen and is pretty inoffensive, but I wouldn't bother with this one. If you're into the video game (which doesn't have an English translation at the time of writing), then you might get something more out of it.
