It's funny...I knew about it, yet never used it....until after one of my worst recent experiences where I had a professor (anatomy) that pretty much refused any extra help outside of what he has. Never handed out PPs he made and showed off in class and refused to send it to us in email. He pretty much wanted us to memorize the book itself. Couldn't even record or take pictures of the stuff he showed us.

Come to find out after I dropped it he's the hardest professor on campus and was fired from his job and the medical college in the community for his work methods and how and how he treated the students. I think there was more to it, but it's been a year since and I hate looking back on that stressful quarter. For a class like that you really need one that works well with you and is willing to help and give you any extra notes (like the power points) to help.

Next try after using ratemyproffesor it helped a tremendous amount...wasn't "the best" but it was better and one of my better experiences in that type of course which I tend to struggle with.