Ok, it's decent. The story starts slow, but slowly gets interesting. Remembers Berserk, Devil May Cry and other stuff, but there is some flaws:
Blue, blue and more blue. Everything is blue. Then you have to find blue phased crystals. Then you have to fight blue phased ghost enemies. Then you have to disarm blue phased traps... All mixed in a blue background.
And that Devil May Cry 1 camera style don't work anymore.
And i swear, in several ocasions, the counter buttom doesn't work and my controller(s) are not broken.
Also the voice acting in english of the little sister... kids don't talk like that!!!
I'm pretty sure the japanese voices are better.
The hidden challenges on the stages are stressfull and the enemies HP sometimes simply takes an eternity to go down, even if you use the correct weapon.