Learning to read Korean and would like to have better/more in depth explanation of rule changes to sound/pronunciation. Doesn't teach you sentence structure. Hate the new update. I've already completed a lesson and earned the legendary crowns but after the update, they've added new words in finished lessons. I have to return to those older lessons and learn new words. Feels like I didn't accomplish anything. Why not just make a new lesson or make the lesson as incomplete to earn more crowns?!