I have to say that I'm having a blast with it. Played 3 hours non stop this evening, my wrist hurts like in the good old days.
As far as quality goes the game is really polished, runs smooth and has lot of customization options. Controls are responsive and things like movement speed, jump height feel well balanced so the gameplay feels "just right". Art direction definitely is a highlight, with various locations and themes, however there is a little bit of asset recycling here and there. Dismemberment is on par with Blade of Darkness, making Katana a weapon of choice. That is also being caused by range weapons feeling a little nerfed, at least the initial ones I managed to find.
Also, white rabbits have their angel of vengeance!