Visually, Quantum of Solace gives a terrible first impression. The first level looks awful. It barely looks good for a PS2 game. After beating the first few levels though, everything starts to liven up a bit. The set pieces and locales eventually start to look good and somewhat believable, but honestly the first impressions are so bad that you might nearly turn off the console.
The biggest feature is that Treyarch acquired Daniel Craig's likeness as James Bond and his character model looks really great. Most of the recognizable characters look really nice as well. The goons that are peppered throughout the levels however, look like cut and paste jobs over and over again. Honestly, I think I killed the same vaguely Spanish looking man about 80 times. They could have done so much more, but fell short.
One of the areas that does stand out though is the audio. The voicework is done really well with all the original actors' dialogue either re-recorded or captured from the films. It all sounds organic. The sound effects from the guns and explosions sound crisp and clear and most of the sounds from cell phones or other gadgets sound nice too. Probably the one thing that most gamers will take away from this game is that damn theme song. They play it when the action heats up, which is every 30 seconds, so be prepared to have it stuck in your head for days afterward.