Throughout most of the game, the quality of graphics is pretty good. there's some amazing moments such as the blackbird landing, and some panoramic shots that you get to see while you're riding in elevators and such. Attention to details is cool, but like an0n said, the quality levels are inconsistent. Ground textures look like garbled mush, whereas textured objects look really nice. Like I posted in the FEAR impressions thread, I'm sick of how developers spend weeks of time on little parts of the maps. Such things like rotating bridges, things that move around but do not serve any other purpose than scenery, and such. Time should be spent lengthening the plot and increasing the playable content in the game. Cutting off content just because they didnt have time to get to it because they were taking months to figure out how to make something work and look really cool is just plain dumb. Games that can be finished in a weekend are starting to feel like renting a movie. Instead of watching, you play, and spending 45 dollars on a movie is plain ridiculous.
" Well, look at the multiplayer capabilities!"
Like Nuke said, no vehicle maps. UT 2K4 had vehicles! LOTS! and they were actually fun to drive and fly! UT 2K4 has a great balance of gameplay plus eyecandy to make it look nice but also a blast to play. Quake 4 is like quake 3 Arena, fast and dirty gameplay, that's been done before. And what gives with the old maps in the new game?! It feels to me that they've been shrunk in size! I remember "The Longest Yard" and "Xaero Gravity" to be a LOT bigger in Q3A. (My two favorite MP maps... butchered!)
Quake 4 is a great game to play when you just want to hop in and shoot things. Shoot things in a cinematic experience.
I expect many more hours of my time to be eaten up playing through the mission packs for Quake 2.