A great sequel
Really, I quite enjoyed it. The first game was okay; an interesting story, but somewhat hard to manage at points, but this game fixed all of those problems. Some of the things seemed slightly out of order, perhaps (the little demon guy didn't appear to point to the water until I'd already gotten the part), but that might have just been that I did something out of order.
Honestly, possibly my least favorite part was the overt references to other games. Little hidden things are cool and thematic, but when you click on something and it says "This isn't Deus Ex" or "This isn't Alice is Dead," it's a little off-putting.
Still, I'm thoroughly looking forward to part 3. I'm quite intrigued by this point.