The game is ok but is in no way revolutionary...
First I find that there are easy ways to handle many fights due to off-screen enemies not attacking you before they get on your screen.( there can be 6 enemies in the room, only those on your camera will attack and those off camera will take forever to move closer to you).
Secondly the whole score/leaderboard is kinda very screwy...
Thirdly as with many games of this type the camera management sucks ...
Finally you seem to be able to power your way through hard mode thanks to heavy consumable useage if you want so ..
The best part of the game imo is the Alfheim portal challenges...
The huge number of checkpoints ( even half way through a boss fight) ensures the game isn't really that hard either...
Another issue I have is the combos, there are so many of them and so similar that random push of punch and kicks will lead to a valid combo and you don't really need to learn them except for the Allfheim portals...( i cleared normal mostly pushing random buttons.. )
To sumarize it, it's decent but it's not in the same league as NG Black/NGS....
Heck, I had a lot more fun playing DMC4, at least the score/leaderboard made sense in that game...