Girlish Number was pretty good but I found the protagonist annoying, along with about half the cast. Hopefully there will be some character development.
It also really went to the well a lot with "snarky comment -> main character makes a funny face".
The events at the end were interesting, though. It felt kind of like a more sarcastic-comedy focused Shirobako.
Long Riders ep 1 was so paint-by-the-numbers. Halfway through, I started calling them Yui and Mio.