Complete amazing huge increase on the graphics and gameplay.
The graphics are so much better every thing has a glow to it now.
The shine is truely amazing on everything including the alien look a like thing that call your the free man. (On a 8800GTX)
The Sound is spectactular on a 5.1 I can't amagine what it would be like on a 7.1 it sounds so realistic (on a X-fi)
The gameplay is about that same but alot more speed is required in this game it reminds me more of Half Life 1 because you have to be quick.
The Controls.
The Controls are the same nothing to worry about here still the same good controls.
Let me also say that they have done an amazing job with Alex this game wouldn't have been the same without her in this game adding her was the best idea since making Half Life.
You will find this game truely amazing when you get in the car and drive across the forest and going through the tunnels with the glow of the bugs.
This game is truely spectacular if your a half life fan or even if you have not played it yet I really would recommend buying this game.
Buy Buy Buy! :)
Thanks for taking the time to read this review have a great day!