I gave it a try: a) it was given free, b) it was a short game and c) it is a puzzle game.
It is one of those game you never though on buying it but after playing it you thing how would it possible I could have missed this game. I read it was hard to beat, however, even though it has its hard parts. I was not impossible.
For me was no impossible challenge, just above normal in term of difficult. I really liked the level it has.
The story is interesting enough to keep you playing to the end to know what it is happening. I don't totally like the ending. However, I haven't played this game from the story perspective but to beat the challenging puzzles.
The music is very good, completely aligned with the atmosphere.
This is an smart game I recommend you to play.
Thanks for reading.