I picked it up again recently - spurred by seeing footage of Dark Arisen - and had a better time then ever with it. It has a lot of design quirks that I found hard to get past originally, but it's such a great, unique, and just plain brave game that eventually I learned to forgive.
It's the game that makes me excited for next-gen. It's just incredibly ambitious with it's 100% dynamic lighting and open world, to the point where they really scraped the ceiling of what current-gen can do. I'm hoping developers will feel free to be more daring in those sorts of aspects now that they'll have a little wiggle room. There's also a faint hope in me that games like this and Dark Souls light a fire under the right people and we get more crazy niche-but-surprisingly-not-so-niche things like them moving forward. They're good evidence that big companies are still willing to take big risks making quality crazy games.