Overall, I would definitely recommend PrepExpert! I used it and got my target SAT score, which made me really happy :) My instructor was Nishi Patel and she was AMAZING! She definitely made the class fun and her strategies were super helpful and effective. A few lessons I learned over the course: 1) Although the teachers and the material is designed to help you succeed and raise your score significantly, you will have to put in time outside of class and make sure you don't fall behind on the homework or the tests. One tip I really liked from the course was the SAT Insight Notebook, which was a way to learn from your mistakes. 2) Sometimes, you won't get what is promised. In the course that I selected, it said I would recieve a KindleFire with my order and that my essays would be graded each week. However, I didn't get a Kindle and some of my essays were not graded :/ Although this wasn't really an issue for me, it might be useful information for other people considering the course. 3) The strategies and test-taking tips do really help, but you have to be focused in class and try to implement them at home. That being said, if you pay attention in the course, your score should go up :)) 4) The tips are especially helpful for people struggling with the reading and writing section! If you struggle more with math (like me), it's more helpful to practice at home and ask for help during class with questions you don't understand. Ultimately, although the 6-week (in person) class is a bit pricey, I think it's worth the cost as long as you have the time for the homework/tests. Good luck to everyone taking the SAT/ACT!