Not bad, every spell is clear and you can totally understand, I should give it 4 stars, but it’s not bad only when you’re not tired! If you’re tired and sleepy then it’ll be like a boring textbook, so I could only give it 3 stars. Btw there are some interesting quizzes that you can play it with your friends or family, but I don’t actually want to play that with my friends and I don’t have any sibling so it’s not that USABLE to me.