(tl;dr version at bottom)
This game is just.. so amazing. I've never done a review before,
but with this game, just... bear with me.
-Decisions make key differences
-Character personalities are unique
-Character voices are spot-on with relation to personalities
-Background, Character, and Scene art gives gives 'vibes' between what is safe and what is not
-Story is phenomenal and leaves a sense of wonder (some parts leave your imagination to it, but not too much that it's frustrating)
-Puzzles can range from simple steps, to thinking 'outside the box'
-The jump scares are great, and there aren't so many that it becomes predictably boring (I.E. Dead Space or F.E.A.R imo)
-The eeriness is nearly constant, and it's refreshing when otherwise
-Occasional change in tone of voices, possibly just recording bugs
-First part of game includes some tedious wait time, (But assuming you can read decently faster than they speak, spacebar helps speed through boring dialogue)
-Includes a fair amount of guessing/chance to your decisions.
tl;dr? Buy it. It's on sale, and even if it wasn't, it's a fantastic puzzle/horror game with a great story. Job very well done.