Don't think I've ever played a puzzle game or even wanted to before but I really enjoyed this.
The mechanic with evil was very fun to play with, and finishing the harder puzzles was difficult but Felt very accomplishing when you did. + New mechanics being added every level kept the puzzles fresh and fun to figure out.
The art is very cute and makes the game look nice and cozy, and the music on the background was nice too.
I could point bugs out but other have noted them already, and none of them that I experienced were very crucial or anything so it didn't change my overall enjoyment of the game.
I'm kinda sad that it is just a gamejam game. You could make a lot of varying puzzles with the mechanics in the game and when I finished the game I really wished there was more.
Only complaint I had was that dying or resetting could take you a whole puzzle back. Which got kinda annoying after me failing a puzzle 10 times and having to do the previous puzzle 10 times over as well.
Overall my personal experience would be 9/10. Very enjoyable, wish there was more