I'd definitely say that Prep Expert's 6-Week SAT Prep Course has helped me to increase my SAT score and improve my timing. Ilia Kolmagorov was a good instructor; he explained the material in-depth and really helped me to understand questions that I got wrong or was confused about. However, I do wish that there was more class time dedicated to going over the lessons and Expert Strategies. Sometimes the instruction given was cursory and I had to go over the material later on my own to gain a full understanding. That being said, I'd still recommend the course to anyone who wants to improve their SAT score and have a better understanding of the concepts on the test and the best ways to take it.