She is even not a professor! She is a postdoc student. I wouldn't expect that the funds are so limited that the school has to ask a PHD student to give a lecture.

1.She doesn't post her lecture notes or videos
2.Her lectures are not clear and she never designs and arranges the notes. She just randomly writes sth down on the whiteboard in a chaotic way.
3.She makes mistakes during her lectures frequently, saying "I will figure it out later" and then nothing follows.
4.The HW workload is overwhelming.
5.The exams are challenging. She said the reason was that a difficult test can make us listen to lectures more carefully in the future. What? This is totally bullying students! She can totally figure out why we can't pay attention to her lectures if she spends some time thinking about the quality of her lectures and notes.
6.If you ever have a classmate who after exams loves to write sth chaotically on scratch paper and explain to you in a way that only they can understand and repeat what they say until feeling they understand themselves, you will have the same feeling on this professor.

In one sentence: it is the school's fiscal failure, not this professor's fault. She is also a passionate student who dedicatedly pursues her interest. It's the schools' choice that compels her to lecture undergraduates. What the school does is eroding the value of our substantial tuition.