Personally I thought it was a terrific episode, maybe one of the best of the series.
Although it seems rather light-hearted, it actually raises some very interesting philosophical questions at the same time.
As Malloy says, the sum of the parts is the personality that he's fallen in love with. Obviously tinkering with that creates an artificial experience, but prior to that, who is to say what the sum total of our experiences would result in?
Sure, right now, we don't have the programming expertise or power to do it - but how far have we come in 50 years? How about 350 years from now? How well can the computer fill in the missing blanks? We like to think we're unique, but as Westworld suggests, human beings have our own behavioural loops.
What data was available suggested that she would be interested in Malloy - he never set up the simulation for that to happen.
I liked Malloy's line about Isaac, and whether or not he's self-aware or only so sophisticated enough that the observer can't tell the difference. And in that case, does it really matter?
Ultimately, you have to question whether a 2 GB cellphone has enough information to create a reasonable impression of a person (even with a powerful computer filling in the gaps).
It also begs the question as to why the other holodeck experiences that people engage in on the show are so clunky. No one ever tried to download personal data (and I assume the amount of data you could collect in the future would be exponentially greater) and essentially create an immortal, virtual copy of themselves or a loved one? I suppose it could be a social taboo. In any event, I really enjoyed the story nevertheless, and I suppose what was fascinating to them might have been to experience a simulation that is so mundane by comparison.
Good science-fiction is supposed to give rise to good questions, and that's exactly what this episode did.
But good science-fiction with solid performances and good characterizations is even better. I'm sure any one of us could easily fall for someone like that - and the actress and writers did a fabulous job bringing her to life. Also nice to see Grimes when he isn't just playing the goofy comic relief.
Other shows have done the holodeck experience before, but not as deftly and as nuanced as this one IMO. There is a quiet dignity and tragedy derived from the fact that her personality is sourced from selections of her own personal life and not from historical record or the cast member's preferences.
Maybe because I'm getting older and mortality isn't just something that is too far away to think about.
That line about people in photographs in the past seeming so distant was a good one.