spoilers
I mean, the term "deep" has kind of a negative connotation, but it did make a pretty clever point, I thought. The entire movie, the audience kind of identifies with the visitor, protagonist guy. Throughout the movie, you end up rooting for him and for the liberation of this "woman" who the audience ends up actually liking and feeling sympathy for. Sure, she wasn't human, but maybe she had elements of humanity. You root against the brutal, heavy handed, eccentric builder of the robot who treats "her" cruelly.
And then at the end, you step back and remember "wait a second, she's not a human at all! she's a dang robot who was programmed to have one goal, and to achieve it by any means." It left me feeling silly for rooting for the insanity of killing a human being to save a computer -- a computer that is incapable of feeling any kind of emotion, but is very good a feigning it.
I thought it was a clever movie the way it manipulated its audience to participate in the insanity, and left it feeling as hoodwinked as the visitor guy.