At its best it's charming and challenging, and when you finish a particularly tough puzzle it does feel really rewarding. At its worst, the puzzles can rely too heavily on knowing the game and its mechanics inside out, with not enough prior gameplay to have been able to master whatever obscure gameplay aspect is needed for that puzzle.

Overall, I like the game, but man it can be frustrating when puzzles rely on mechanics that you have to accidentally learn.

Update: 100% Completed the game, very convoluted ending but I guess that's what trying to complete it gets me lmao. Overall glad I played the game, as frustrating it got near the end.