If you decide to enroll in a GMAT prep course, keep in mind the following points of advice: Ask about the policy for repeating the course. Insist on having the option to repeat the course at least once without charge at any time (not just within the following year). Ask about merit-based or need-based scholarships (fee reductions). If you repeat the course, be sure to arrange for a different instructor; just as with GMAT books, each GMAT instructor has his or her own teaching style, and you may derive greater benefit from a different type. The most significant benefit.