Very good puzzle game that is not too simple and last levels are quite challenging. As a brain exercise it's great.
To have it a better experience I would liked to see more levels and a bit of a story and character design instead of just abstract objects and the few levels that there are. For instance I have seen similar games where the rooms are furnished as ancient temple, the main character looks like an archeologist and the patrolling villains are mummies or animated statues. Despite this game having as good gameplay and possibly even smarter puzzles, I cannot give this a higher score then to a game that has it's visuals, characters and storytelling done.