This is my second time watching an Idol anime with the first being Wake Up, Girls but overall, the show is great if you haven't been saturated with Idol anime over the years. If you haven't tried any then this might be a good starting point then after you can move on to the more popular and recent Idol anime like WUG, Love Live!. The story is kinda meh (7/10), I won't spoil anything but some episodes was awesome. The art style was my favorite style (9/10), I fell in love with the art style of recent anime starting with New Game! & Non Non Biyori butI might be a little bit biased as I disliked most art style from 2009-11.
Soundtrack was very good (8/10), ED was sang by the group and the BGM fits the genre and story too!
Characters (8/10), you might get lost to who is who if you weren't paying attention but they show you who is who at the beginning so don't fret!
Overall, 8/10, like I said second Idol anime and that's not my genre but I don't mind it! For the 2018 Summer line-up, I think it fits and you should try it before you ignore it!