I got in from GF today, ton of fun so far. It is challenging even on normal, and there are some great puzzles for those of you who like to think. Action is just as fun, and the puzzles are optional. So far i give it a 8.8
Great game. Its great to be able to move around freely and take out enemies in ways you choose. Its even better how the enemies react to your stealthy tactics. In detective mode, one 'condition' of a person is "terrified". Other than lip-syncing problems and villain costumes used to attract the perverted geeks of america, it's great.
So Far, I'm digging it alot. I was worried that the combat would be boring. but it's staying interesting by introducing varying enemies to deal with. So far the Boss battles are great. Atmosphere is fantastic controls, especially in combat, and great and fluid, and the voice acting , for the most part, is over the top and comical... and extremely well done. especially Mark Hamill reprising his role as the Joker from the Animated Series.