The game looks just as great from a technical standpoint as well. There's a bit of pop-in when traveling across the capital wastes, though it isn't nearly as noticeable as in Oblivion. Draw distances are impressive, especially when in the D.C. area. It's an awe-inspiring moment when you step out of a metro tunnel and see the towering ruins of the Washington Monument and Capitol looming in front of you.
While there isn't much to look at, there's plenty of hear. Everyone has something to say and the voice acting is, for the most part, spot on. The people you interact with are a little more animated than in Oblivion, but there is still a bit of an emotional disconnect; if someone is yelling at me, I'd like to see them do more than scowl and stand there.
Music is handled a little differently than in most games. There are a handful of moody background songs, though most of the time you'll hear little more than ambient noises and sporadic gunfire. As you travel the wastes, you'll eventually pick up radio broadcasts that serve as your background music. The two big two are Galaxy News Radio (GNR), which is serves up a few old standards and periodic news updates and Enclave Radio, a recorded loop of propaganda and patriotic songs from the "American Government."
There's a decent amount of repetition with both stations, though they do a good job of informing the world the game is trying to create. I have a theory that when America does collapse, it will be accompanied by a lot of political rhetoric and Lee Greenwood music, which is the exact experience the Enclave's station delivers. In comparison, GNR is the "voice of the people" and most of the news updates are commentary on your actions during quests, making you feel like a part of the world.