Idol Shikkaku and Dakara Watashi wa Oshimashita? are both focused on understanding human nature through the somewhat messed up setting of the Japanese idol industry. While IS is less polished than DWO, I think IS is still worth the watch. To me, one can tell that IS has thoughtfulness behind it, that a person knowledgeable about idols poured love into the characters of the story they had made. And if you haven't watched DWO, you really should.