Hyped, but good for fans of the first person shooter genre.
The storyline is a more fleshed out version of Doom's original storyline. You're a new marine guard for a research acility on Mars. During your first day on the job, something occurs that opens a portal to Hell. Now you are the only one who can combat the forces of hell to stay alive and save humanity from the demon menace.
Graphics and sound are the stars of the show here. Shadow detail is well done, and monsters and people look realistic, though the skins do look somewhat rubbery. The sound sets the mood rather appropriately, the monsters sound truly hellish and the guns all sound appropriate.
Gameplay is pretty much your standard shooter stuff. You've got a bunch of different guns, you point them in the right direction and fire. The guns all have the appropriate feel to them, when you fire a shotgun, you get the power and recoil you would expect from a shotgun, etc. Doom 3 uses a lot of ambushes to make you jump, primarily relying on the graphics and sound to set the mood; this will work for the first few levels, it's genuinely freaky, but towards the end of the game it feels tired and overused (I was actually predicting them with a fair bit of accuracy).
The biggest disappointment is the multiplayer, it feels like something I played years ago. The rocket launcher is easily the weapon of choice and was located somewhere on every multiplayer level I tried.
Is it great? No. But it is a solid shooter in the single player department that looks and sounds good and delivers a tense atmosphere. There was a lot more potential here, but Doom 3 delivers a good first person shooter experience.