It's a mixed bag. The story, atmosphere and voice acting are excellent. The game is worth playing for those alone.

However, the game part is very clunky. Combat never really feels good. Boss fights are gimmicky which is okay since the combat is really not very good.
Level design is confusing and it's easy to lose your way.
Many, many, too many box puzzles. They even throw respawning enemies in box puzzle rooms which gets irritating.
I hope the sequel is better. I plan to play it eventually.