Has some issues, like:
- no mouse support for walking (yeah I know, the path finding could make things more difficult)
- no option to swap the WASD and cursor keys blocks

But the story, the style, the length and the adventure compensates for everything. I've found the combat stuff quite irritating (maybe would have been better with a gamepad - don't know), but just until I've sold my soul to the devil :D

I really enjoyed the game and played through the whole thing. The puzzle design was excellent and the atmosphere really dense and spooky.
I also enjoyed the overall storyline and writing, only the potty-humor was a bit too much for me.

Combat wasn't too frequent and features an easy-mode so I enjoyed that as well.

Overall: good job, 8/10, recommended.