Well, first of all this is not exactly a review. Here you are not going to find the good of the bad points of the show. Now I'll try to explain why I don't like this show and the trend it represent.
The point is: Has this show something in its story that wasn't in previous animes? The answer is no. Almost everything you are going to see here was copied from another anime, manga or novel. It haves a similar plot to Shirobako, but poorly written;the main character is indistinguishable of over a myriad of other generic MC; the side characters are also copies or mixures of other popular characters, you have from Yukino going by Rias Gremory mixed with a fujoshi and finishing with a member of the FFF inquisition; the dialogues about visual novels or anime-related terms are a shame, You get the idea?
And the worst about this is that this one is not the only one. Lot of anime season by season do the same. Writters are becoming lazy and I don't like it. No one should like it.
I'm not saying this is the worst anime of the season, I managed to finish it, and watching it is not a pain, but I had to say something against this trend of treating us, the consumers, as idiots who can't remember that everything he is seeing in their show is not of their own.