Someone who witnessed this as a child in person, once said to me, that this is most likely the closest to what happened in a dramatized version. Regardless of accuracy, it is a superb show.
If you can't tell the difference whether it is real or not, does it matter? Westworld Season 1 is a philosophical debate at its core, dressed in gritty western clothes with high tech behind the curtain. Elegant, intriguing and it makes you want for more.