It's a cute game and plays really well, I enjoyed it. The puzzles are a good balance of accessible and clever, and I like the rate at which it builds complexity. If I had any criticism it would be that sometimes the hints are a little obtuse and also that the music can get repetitive. But those are minor quibbles in the face of this being a solodev project, and I would still recommend buying the game; I'm going to be following the creator for future releases.