It's like a totally different expirience than the first one. It's so amazing. Bullet time 2.0 is sweet. As you kill more enemies, your meter turns darker and darker yellow which means you move faster so they're moving slowly around you and bullets are going by, but you're just like wailing on them with dual ingrams it's sweet.
Also he actually has a face thsi time which is good. He doesnt have that "why can't i pinch this loaf" look on the whole game. Uh what else... the story is also really deep. You gotta follow it closley but the way it moves along is really good. And also the rag doll physicas are a lot of fun. There are certain parts of the game where the enemies will go into a matrix style slow-mo sequence getting shot at and this is when the havoc engine shines. Just throw a 'nade into a room of enemeis and watch them fly everywhere and fall back down just like how all those agent smiths did in the second matrix movie.
It's really good, dude and if you can you should pick it up for pc if it can handle it because they are also making various add ons and mods like hand-to-hand combat and the ability to insanity matrix jumps from ledge to ledge etc.