Finished the season. The last 2 episodes were pretty mid and hampered my overall enjoyment of the season.
There were some standout parts in finale, like Bernard/Arnold meeting his wife, but there are so many very poorly done action scenes, so many bad action film cliches (Maeve gloating over defeated Dolores while she slowly crawls to EMP, stormtrooper aim for 3 seasons in a row, William trying to punch a frigging robot, William joining the cast of Alien: Covenant at the end of the episode and so on). If you want to make an action show, by all means, I love good action, but you ain't no pimple on a butt of Gangs of London or Banshee or even Strike Back, I actually struggle to think of a prominent show with action being worse than that of Westworld.
The antagonists are terrible for at least 2 seasons now, it was tolerable in season 2 because Skarsgard and his goons had minimal role, but Serac is a poor man's Greer without an ounce of his charisma. I don't know what happened, every arc villain in PoI felt like a legitimate threat even if heroes ended up mostly unscathed, there's virtually no stakes in Westworld, death is cheap and villains are incompetent. How many times are you going to send a team of meatbags with conventional weapons if it doesn't work for the first 5000 tries?
Jonah Nolan is great writer who was crucial in making some of the best works of his brother, but he just playing himself at this point. Even worse, it seems that he stubbornly refuses to acknowledge that ship is approaching reefs.