Sherpa Prep is most likely the best…
Sherpa Prep is most likely the best GMAT prep course available today. I did the online class and people from countries all over the world signed up to take this course. I can see why, Nafeez is a professional in the utmost sense of the word when it comes to knowledge of and teaching the GMAT. He is one of, if not the worlds foremost expert on the GMAT, he knows the exam in and out and will teach you the same. 10/10 recommend.