The graphics do look better. I like that it's darker too, and some good fog effects. Some things still need some love, though. But it's by no means bad-looking.
The film grain is cool in a way, but it doesn't properly replicate the movie at all. The grain in this is too much and looks worse than VHS.
The aliens AI generally seem to target the player more, which makes solo play extremely hard in some sections, mostly in parts where you have to defend a spot. It can be frustrating and unfair.
One funny thing I found: there's a really bad glitch with the first lurker you encounter above where Keyes is hived. If you walk up to the lurker while he's still curled in the wall, his model starts moving around in the air. You can keep pushing him around all over the place while he's still in his static curled animation. Strange.
Not much else to really say. I still would like them to get rid of the stupid sway animation on the guns. It looks ridiculous seeing my laser pointer facing one way and seeing the hit detection to the right of it.