The game was fairly challenging even on normal. Yes, Isaac talks, finally. This might not be such a bad thing. It actually works. Visceral introduces some new gameplay elements, for example, zero gravity floating, general improvements. As for the story, it's a little worse. I had a harder time following the story than the first. It took me over 10 hours, closer to 12. Disappointingly, the games seems to challenge you by throwing endless waves of monsters at you. It's cheap and annoying. The same technical problems from the first game exists too. Vsync runs at 30 fps, must force vsync to play at 60fps. Not quite as good as the original but still a must-play game.
Again, no screenshots from playing on tv, I will be playing the third in the series with a friend of mine tonight, so should hope to have it finished by the weekend.