Act 1 was beyond excellent. I'm starting to realize that I actually hated Act 2, and I do not say that lightly. I think Act 2 makes for probably one of the worst sections of an RPG... almost everything about it was unsatisfying: the narrative, the reactivity, the exploration, the scope, the character development, the choices, the structure of activities, almost all of it.
I still prefer Act 2 to Act 3 ... Act 3 is just strange and feels rushed and unfinished (haven't completed it though). Granted, Act 2 had it's problems, but they aren't as obvious as in Act 3.