Spoiler for whole game + previous Didn't like what they did with Date, last game it was explained why he was horny all the time, yet he is pretty much the same here. Since it is a continuation of the true ending of AI1 I thought they would build on Falco more, but didn't because they didn't want to spoil the first game or something.
Also it seems they went for Psyncs way to quickly without really trying to interrogate them. Like you sense someone is hiding something, and the next moment he's on the Psync machine, yet most of the time th Psyncs don't reveal anything important or shocking at all. I felt the story didn't flow very well because of that.
Finally not a big fan of the big twist. I personally enjoy reveals on how the crimes are committed, yet it turns out that mystery isn't anything special and it's just the game tricking me through unreliable narration.