http://xbox.ign.com/articles/666/666049p1.html
9.5 Presentation
Subtle, minimalist HUD, menus, and interfaces. It's all about believability, and Valve does it better than anyone.
9.0 Graphics
Excellent for the Xbox. This isn't high-end, high-resolution PC imagery, but the graphics are nonetheless damn good.
9.5 Sound
Great voice acting plus superb music equals top-notch sound all around.
10 Gameplay
A huge variety of missions, experiences, and suprises will have you riveted all the way to the end.
8.5 Lasting Appeal
A 16- to 18-hour single-player game with tons of little things that are worth going back and finding. The G-Man awaits your search.
9.4 Outstanding OVERALL
(out of 10 / not an average)
9.5 Presentation
Subtle, minimalist HUD, menus, and interfaces. It's all about believability, and Valve does it better than anyone.
9.0 Graphics
Excellent for the Xbox. This isn't high-end, high-resolution PC imagery, but the graphics are nonetheless damn good.
9.5 Sound
Great voice acting plus superb music equals top-notch sound all around.
10 Gameplay
A huge variety of missions, experiences, and suprises will have you riveted all the way to the end.
8.5 Lasting Appeal
A 16- to 18-hour single-player game with tons of little things that are worth going back and finding. The G-Man awaits your search.
9.4 Outstanding OVERALL
(out of 10 / not an average)