If you like teachers that mark unreasonably, don't care about your marks, and speak incredibly softly (even though their laugh could crack glass), then Ms. Li's the one you want! Honestly speaking, from personal experiences since gr.9, Ms. Li was and still is, my least favourite teacher. She's very quiet when she speaks and doesn't know how to control classroom volume and behaviour when the situation calls for it. Shetakesoffeverylittlemarkanddoesn'tkeepinmindthatsometimesshemakesmistakestoo. :(
She's a good teacher, but do your homework and be prepared to work.
She makes us work hard but it's a good thing because she improves our Mandarin that way.