Unique design choices does not constitute a fun game.
-Excellent sound design and atmospheric riffs. Subtle changes in the background sound helps to vary the environments where graphics normally would. At times it feels like you're in an expansive factory of some sort, at other points it's much more of an oppressive nightmare.
-Black and white graphical design looks great and it's nice to see another game with a minimalist approach to things.
-Doesn't push a plotline on you and it doesn't need to.
Bad:
-Puzzle design is very intelligent but doesn't leave any room for error and forces the player to use reflexes rather than thinking things through. I did not enjoy most of the puzzles in the game because even if you know what to do, actually doing it takes way too much trial and error.
-PC controls are horrendous. Accidentally jumping off of chains and other upright objects is far too easy.
-I liked that the ending looped back to what appears to be the start of the game and the boy finds his sister (or whoever the girl is) but it didn't really do it in a way that makes any sense or that showcases the game's graphical strengths.
-Would've liked more appearances by the spider or another recurring nemesis.