My son worked with Nnang before his first SAT this April. Nnang was super easy to work with for both my teen and me. He is flexible and reliable. He puts in a huge amount of work to tailor the tutoring to each student's need. My son's SAT score was significantly higher than his PSAT and the credit goes to Nnang's patient work with him. I highly recommend American Empirical Prep for any standardized testing tutoring.