Alright, the other day I gave in and bought it. IT IS AMAZING. I've got about two hours in it too. I can run it on ultra, but I get occasional FPS drops. They aren't frequent enough to make me lower the settings though. The beginning was SO GOOD. I knew something wasn't right in the vault... I knew it said before release that we would be the sole survivor of vault 111, but I didn't expect it to happen like this.

Oh, and I have played Fallout 3, and I have new vegas, but I've only actually played it for two hours.

EARLY GAME SPOILERS:
Spoiler:

I'm suspicious that one other cryogenic freezer was empty. I have a feeling that this may be important later. Could someone else have survived? Also, something I'm wondering is how much time passed between when your son was taken out and when you got out. Is he going to be like, 20 when you find him?