Ive finally played Amensia. Heres my Review (plus Penumbra comparisons)

[Cataclysm]

I agree there definitely could have been more puzzles, and the monster scripts were a little annoying. However, on that same thought, being absorbed in the atmosphere (for me at least) misdirected me from notices them a lot of the time. The thing about Amnesia is, you have to just play through and absorb yourself as much as possible. If you focus to much on the things like that you lose some of the experience. You can reflect later.

The scripting detail is something that is difficult to avoid in a game where no weapons are at your disposal. Imagine patrols in some of the areas in that game O_O!!!! I spent to much time in the Choir Main hall for my own sanity!!