Bill O'Reilly and Megyn Kelly were so dead-on that it was kind of scary. Then we got others that weren't such exact matches and it was deflating.
I was disappointed that they didn't show Gretchen Carlson in at least one meeting with Roger Ailes recording with her phone, or show her in there with it in her hand rather than just tossing it in at the end as a gotcha moment. I couldn't stand her self-righteous smugness in real life and I didn't need any more of that character on screen, but it didn't feel right to just drop that in at the end.
I felt like that whole bit with Kate McKinnon and Margo Robbie was just to make sure that if you didn't know the people making this movie don't like conservatives, now you really know for sure because we got a monologue in. A movie about Matt Lauer and his button would be just as good, but it would never be made.