I was extremely surprised at how poor quality Duolingo's Mandarin class was.. I don't speak fluently but I speak well enough for daily life and even I could fin

I was extremely surprised at how poor quality Duolingo's Mandarin class was.. I don't speak fluently but I speak well enough for daily life and even I could find some errors (and confirmed with my partner who is a native speaker) In all languages I speak decently, I've been surprised by how poor quality the lessons were.