I was surprised to find out that the main character of this movie was some nerdy 20-something kid from Long Island. The promotional images all focused on the same shot of Eva in the hallway playing with the mask. This image:
It looked dull and existential, and I assumed there wouldn't be a relatable character in the movie. (You can't relate to a robot, after all.)
Anyway...I thought the movie was well-written. I watched it all in one sitting.
There was one scene where Caleb asks Nathan if he purposefully designed Eva's face based on his (Caleb's) pornography searches. I thought it was a weird line, because Alicia Vikander doesn't really have a face that seems to represent a "type." Unless your type is "less attractive version of Jessica Alba."