Just completed Darksiders and have to say I was quite impressed. The graphics were very good, and the fighting was intense with lots of special moves and abilities to help bring down the demons from hell and the angels from heaven for that matter. The story was interesting and left a great opener for a sequel. What surprised me the most though was the puzzles; in the sense that they were fun to do and some were damn right hard (light beam puzzles i'm staring in your direction).
This game has been out for a while now and is quite cheap, so if you haven't got it, it would be worthwhile picking it up.