I got this game on a Thursday, and played it for an hour. The next day, I called off of work and played it for nine hours straight. I've been waiting for a truly GREAT RPG for the PS3, and we finally have it. The next I bought the game and the strategy guide.
If you are going to play through the game, I'd definitely recommend spending $26 on the strategy guide.
This game is the reason mankind crawled out of the primordial ooze. The graphics are beautiful. The game-play is exciting. The story is compelling. The setting is massive and feels very much alive. There are so many places to go, things to see, and character combinations to try. If you like RPG's you will be playing this for months.
Downsides: There are some glitches, but they are avoidable. Don't try to power level! The game knows that you are trying to cheat and it will hand you a whoopin.