I used Target Test Prep (TTP) to study for the GMAT on a pretty tight timeline (around six weeks), and it was really helpful in getting me up to speed quickly. What I liked most was how structured everything was: the curriculum makes it easy to actually learn the “language” of the GMAT, as I was a first timer. Specifically, the Quant section is super comprehensive and does a great job building from the basics to harder concepts. Overall, I’d definitely recommend TTP if you’re looking for a clear, structured way to prepare, especially on a time crunch.