It took me a while, but I'm making strides in "unlearning" the Souls games to properly play Bloodborne. I've tried all four builds and really like all of the weapons. The hammer/sword, though, is just too damn satisfying not to gravitate toward.
As others have no doubt stated, my main concerns at this point are that the framerate is stable and the camera is better-tempered. Vision is just too damn obscured during the boss fight.
But really, the aesthetic/atmosphere... oh man. The level of tension is through the roof -- in a good way. As far as pacing is concerned the combat is definitely faster than a Souls game, but that doesn't mean that patience isn't required to succeed. Picking your spots and approaching encounters intelligently is still at the heart of this game.
Oh yeah, and of the concerns that it would be too easy. Dead and buried. Even in this short preview, this is a difficult game to be certain.
...and with that, I think I'll be going into complete media blackout mode on Bloodborne.