Binge watched it the last few days, while it was good (6.5/10 for me) it was pretty predictable how it would all play out. No twists, nothing unexpected and it didn't really have a clear message or purpose.
This is reported to be the most expensive TV show - costing the same per episode as the last few game of thrones episodes - 15m an episode - 300m for the 20 total episodes. All that money and it should have been way way better. They could have commissioned 10 shows for the same price and at least half would be better.
Shows about TV shows are often great (episodes, drop the dead donkey,30 rock etc) when they are smart and well written.
I don't think Jen Aniston is a good actress at all, although props to her with the scene about going through a divorce and the pr person going through what people will think, that must have been a bit awkward.
I didn't watch it on apple+

and can't see many people continuing to pay waiting for the next season. Maybe S2 will just be canned. Apple really wants to be a media creator now their hardware sales have slowed right down but it's competitive out there.