A great shooter - But be warned! you're gonna need a hefty rig to handle all the extreme action.
I was a little bit dissapointed in the fact that I have a pc with a reasonable amount of RAM (1gig) and a GeForceFX 5700 card. Not the greatest, but hey Doom 3 still gave me a decent frame rate on medium settings.
Yet Quake 4 is a massive system hog - even on a resolution of 800x600 and all settings on low, I still got poor frame rates. So as a rssult Im now forced to run everything on the lowest of low. It all looks pretty bad as they're no effects or no bump mapping either. But I get a decent frame rate and I can play the game. So that's what counts, and I must accept the fact that developers are now making games to usher in the new breed of video cards. So, even though my system is new-ish by about a year, it may be time to upgrade.
As far as the game itself goes, this is Quake all over. Fast paced, violent, brutal and chunky. I have heard people complain about the multiplayer aspect being so-so, but it's still a ton of fun. It;s obvious the emphasis is on single player, and that's still ok by me as it's a great sequal to Quake II. Theres heaps to explore and heaps to interact with and frag.....if only I could see it in all it's glory :(