I'm not really buying the story. The visual side is okay, rather good, though not entirely my piece of cake either.

But I really liked the puzzles.

And I think that's the most important thing in a puzzle game, no? They get progressively harder with each set of levels, some took me really long time to figure out. This game benefits from breaks, you know, standing up, walking around the room, petting a dog, making yourself a sandwich. After a break like that, on more than one occasion, I solved a level I was previously stuck on in a couple of minutes.

6 hours for me to have all levels beaten. (I'm counting about 1 hour to all the breaks I had while playing.) Good little title. Breaks brain the enjoyable way :)