Like many of the commenters, I enjoyed some of the detail work--Hornblower slash fiction--but thought some of the big picture issues weren't so compelling. As others have noted, lots of tiny moments of tension don't build up; and I'm not sure I see all that much in the way of character growth over those obstacles.
Which brings me to my biggest complaint: Alan never really feels like AI. For instance, we get the three different instances of Alan acting differently, but how does that happen? If we're looking at this as a story about how people make decisions--how the human decides to cut herself off from people in real life, how one Alan decides to risk going to Mexico, etc.--I'd like some more light shone on the process behind Alan. What does it really feel like to be Alan?
Well, I'm off to write Knight Rider slash about KITT falling in love with Michael Knight--a man who does not exist.