Prep Expert is a fine SAT studying tool. I will not deny that it works well and has the right tools you need to succeed on the SAT. However, the workload is slightly excessive (although I do know more practice helps) and the essays should be optional considering for the SAT the essay is optional (regarding the cash back guarantee), and I am taking the one without the essay. But it is overall a good course and I learned a lot from it. Daniel Lee, my teacher, was good at the skills and tricks and taught very well. The only problem I had was that his voice was a bit monotonous and made the course seem boring, but it was bearable.