It's a pretty good puzzle game. None of the puzzles seemed too complicated or took much time, and it didn't take too long to complete the entire game. I liked that the levels got progressively more difficult, though I feel that by the end they could still have been tougher. Even the final one, as large as it seemed, only took about a minute to finish. As far as the art goes, it's pretty basic, but I like the calm background. The ad pop-ups are somewhat annoying. Overall, it's a decent iteration in a common genre of puzzle games with no real redeeming qualities to prove it better than average.