Oddly enough, i've just taken a look at the Westworld Reddit page - which is just post after post about who is inside Charlotte - and decided I might be checking out for now. If your show has nothing BUT mystery, then it - as you say - just one big, expensive gimmick.
How did Nolan manage to turn out the fascinating, thoughtful 'Person of interest' on CBS (!!!) and yet use his HBO riches to make...this? A glossy perfume commercial of a show, shallower than a puddle.