Wonka is useful for English practice if you can already follow natural conversations. At an average of around 107 words per minute, the dialogue is generally manageable, though some exchanges require more attention. The vocabulary is not overly technical, though it includes enough variety to make the practice meaningful. The narrative adds extra difficulty because learners need to track events, motives, or character relationships. If your English is close to B2/C1, Wonka can be useful for building confidence with more complex narratives.