I think prep expert is a very important and useful course as it provides the student with a bountiful amount of practice problems. My instructor was shefali and she was really understanding and helped us with every problem even going out of her way to provide us with science practice problems. She really did help us with understanding the content. While my overall act score did not improve I still was able to improve my reading skills and my English skills. The course really provided me some insight on what the act will be like and how I should schedule my studying from now on. I really like the plethora of resources this course gives you and how you can access them even after you have finished the course.