Has a certain charm, and it is nice in the first few levels.
I stopped at level 36 or something, because there was nothing that made me want to continue.

Story started interesting and mysterious, but got boring and monotonous.
Puzzles were not really difficult, even as the game progressed.
Waiting on moving things to continue in a level was tedious.

My recommendation: if you see it for a couple of bucks, play it for the first (maybe) ten levels, then leave it be.