I think some kind of diary or log in the cell phone would have been good. Not a kind of diary that logs every single conversation but some of the basic points like
Apart of that I wouldn't have changed much. Maybe I would have changed some of the more realistic elements of the game. For example, it is of course realistic that a husband who believes that his wife didn't commit suicide but was murdered, and then spent a lot of energy in trying to convince the police, ends up as a homeless person on the street - but designing him as a now embittered and highly eccentric billionaire who sits alone in front of a fireplace, surrounded only by all kinds of baroque art he brought home from his travels would have also been fine for me.
Maybe I would have also added a scene at the Boston harbor / port - or to the Harbor. But I guess this is the German tourist in me speaking: if I get a serial killer in a big American city I also want a scene at the port. At night. With big ships in the background, haha.
But alas, those are just two things that come to my mind now but they aren't actually important. Basically, I really loved the game and all of the decisions the designers have made. They also did a very good job on Ms Reed, I think. She reminded me a bit of a combination of Debra Morgan and Gabriel Knight.
I think one of the dangers with writing "strong female lead characters etc." is that they can turn out to be a bit boring, when the writers falsely presume that the opposite of a pathetic, one-dimensional woman whose job is just to get saved or to look hawt in her catsuit, is a caricature of strength that's just as one-dimensional: like Achilles without his vulnerable heel. Has anyone here seen "Dark Angel" with Jessica Alba? Started pretty good but after some episodes Alba's character was so
totally superior to everyone else -physically
and intellectually
and even morally- that it really started to get boring. And of course this is especially true with characters who have some kind of super powers.
So - yeah: really liked Erica and the designers have done an awesome job. Maybe they could have added some additional things like, say, an over-average love for coffee or tea or a certain kind of music, etc. Some little eccentricities. Like Hannibal Lecter and his love for Bach's Goldberg Variations. Btw: La Boheme is an opera and not a song.

Poor =( and I thought she sung Ooo mio babbiiiiiiiino caaaaaaro.
Yeah. Sorry. I have some free days and was just in the mood to write something about the game I just finished. xD Very cool game! Really hope that you all will have success with your phoenix studios. =)
Edit: Oops. Spoilers ... right.