I don't understand the harsh reviews. It is a solid show, with a heavy, intense, highly dramatic and climactic story where intrafamilial, transgenerational drama intertwins with high politics, high media and high-tech espionage.
Although the first episodes seem a bit too excessive and complex, as the chapters go by the dust sets a little and you start to get where this comes from, although not where it goes (I am on chapter 5 so far).
The performances are really intense and brilliant (McCrory is a shining actress), and yes, sometimes it gets a bit over the top, but the story is a modern Shakespearean drama, with a monstrous father who has also been a victim and is keen on creating an improved version of a young monster in his own adult child.
I have found it to be intriguing, passionate and well paced.