Don't take her!!! She is not an impartial grader. I've never contested a grade in my time at Columbia except hers. She makes it almost impossible to accommodate you for office hours when her pre-existing ones conflict with your other classes. I asked her for guidance with the paper during the first week of classes because I knew I needed all the time I could get, she said don't worry, it's too early for that, we'll get to that, you have plenty of time, yada yada yada, then when she graded it at the end of the semester, she penalized me saying I should have taken more time to develop it and it seems like I rushed through parts of it. Ugh! As a person I'm sure she's great, but as a professor she needs help!