Well... I'm excited, personally. It looks like a solid FPS, it's not that irritating style of Borderlands that I didn't like, and while Fallout is cool, it's not a solid FPS at all.
I love post apocalyptic. And this is the one I think I've been waiting for. Also, if you check dates, RAGE was announced before Borderlands, so it's not 'just a copy', they've been working on this before Borderlands was known about, and obviously Fallout isn't something that was surprising, nor did it ever look like a frenetic FPS.
tl;dr I'm excited, let's go.