Poor communication. I signed up with a specific teacher and it was switched. They failed to reach out and inform me of the change and did not refund even before the second class started. Prep Expert is underdeveloped and unprofessional. If you contact Prep Expert by phone call, you can hear the disorganization in the background. I only gave PrepExpert a try because of overall good reviews on this certain teacher that I was not able to receive. Ultimately, I was better off self-studying. I did attend a few classes since I was not refunded, and I am disappointed at the amount of wasted time in the class session. The class is 3 hours long and twice a week for this certain SAT prep class. Within the 3 hours, 1 hour is a slideshow with vocabulary words and their definitions. Another hour and a half is spent reviewing the easiest questions which the tutor takes a long time to answer. If you are a student, you don't have 3 hours to spare for slow lectures! Prep Expert is truly time wasted.