One thing I love about the PS3 is the exclusives and this game is perhaps one game I've enjoyed the most in recent years. It's brilliant and combines elements of different games to create an amazing play experience.
It has the action of a hack and slash game, the growth of an rpg and the atmosphere of a Horror game and since the game is really cruel the Horror becomes very apparent.
The control system is great, it takes some getting used to but it offers structure and skill to combat with details like using long weapons in corridors and the attacks being affected by the walls around you, forcing you to use thrust attacks etc.
The online play feels so fresh with your actions impacting on your own alignment. Choose to help players as a blue phantom to go towards the light or invade and murder another living player for darkness. You also get more loot/rewards for being evil but it also makes the game harder as a penalty. Good guys will progress seemingly slower and have a bit more of an easier ride...though not that much easier XD.
It's not very often these days that you get games that are genuinely hard, this game doesnt let you pause or save mid-way through the HUGE levels. You will die a lot, but doing so brings you back in spirit form where you are weaker and have to do a number of things to regain your body. I noted most of them above as the good and evil, you also can regain your body obtaining a demon soul from one of the nasty bosses who are often huge.
Truly a masterpiece of a game and I'm so glad I have a ps3 to enjoy it, people bleat about how awesome COD is and such is when games like this get pushed to the back, a crime I tell ya,