I did the Kaplan course online, and my PCAT score went up 20 points. I still thought I could do better, so I took the class a second time (free since I paid for it the first time and wasn't satisfied with my score) and also used Dr. collins self study guide and my score went up another 14 points. So I made a 90. I think Kaplan is very effective IF you have the time to study everything they give you. There is a lot of information that comes with the class and if you don't study everything, read all of the chapters, take every single test, figure out why you got the answers wrong on the tests, figure out why the other answers didn't work, etc...then you aren't going to benefit from the class. Kaplan lacks in math, especially calculus, and you should definitely use something else to study math. I used old notes.