Art and sound are amazing! Though the brewer's humming gets a little repetitive.
Despite the instructions, it took me a while to truly understand how the game's logic goes. I only understood by puzzle 3 that some ingredients (given X conditions) won't do a reaction! But once I did, the game was very enjoyable and had great puzzles.
Amazing game, I look forward to what more can be done with it; other levels! The only real issues are what's already on the plans (retry/undo, an ending)