Doom3 while hot anticipated by everyone (including myself) - it fails to deliver on some key points.
Highs: Really nice graphics, with no light on and headphones you can really creep yourself out, some nice scripted scary moments.
Lows: I hate running back and forth looking for keys! I hate jumping puzzles (although they are very few)! The marine chatter in the background after the game gets going is very well done. Weapon sounds are weak (some mods fix that though). I didn't have much "fun".
I'd do a full review but I'd just get depressed that I spent 60$ on "Doom-lite with pretty graphics".