The show is good enough, nothing more than that. My major problem with it is the same that I have with a lot of this "historical" or "biographical" narratives: its too teleological. In other words, everything happens as if it had to happen in that very particular way, almost as if the gods wanted the movie to be made no matter what and were controlling everyone to be at the right place at the right time, or to say the only thing that would save the movie, or to have the only idea that could solve a seemingly unsolvable problem. It kinda works to built tension, but at the same time it takes away the authenticity of the story.
I also have a problem with some artistic decisions here and there, but the one thing that stuck with me the most was the constant overacting. I really don't understand why the director thought ok to make a lot of the actors do a different voice than their own, it's just constantly annoying. Some characters doesn't even act like real people sometimes but a caricature of one. There's even a scene where one of the characters makes a silly analogy between company executives and dogs, just so he could fire another minor executive while barking at him in the middle of a restaurant. These goofy scenes are scattered throughout the show and I think they doesn't really do justice to the overall tone of the narrative.
Besides that it's a fun watch and it serves the purpose to make you look for what really happened or not. As long as you don't come looking for anything that even comes close to The Godfather in terms of quality, you probably won't be disappointed.

The Offer is one of the best TV series I've seen for years.

It's a dramatisation of how The Godfather (1972) got made, told from Albery Ruddy's point of view. Ruddy starts out as a bored employee of Rand Corp and somehow gets himself a job as a producer after a pitching a highly successful TV show (Hogan's Heroes) and then through sheer cheek turns this into a shot as a film producer on a prospective book - The Godfather.

It grabbed me from the first few moments and held my attention through the entire 10 episode run. By episode 5 I was genuinely beginning to feel sad because I was now on the last half of the show - and it was coming to end. Not kidding.

It manages to be enthralling, scary and touching while dealing with gangsters, and even worse - Hollywood people. Outstanding moments include the odd couple bond between Coppola and Puzo. Puzo wrote the novel and worked with Coppola to turn it into a script. Ruddy putting them up in a house to work intensively on the script together is a source of genuine laugh-out-loud moments. It's no spoiler to say the film gets made, but all the twists and turns along the way might be.

It's a fabulous series and seems to have slipped under many people's radar too.

If you haven't seen it yet, I can highly recommend it.