The best quant guide

I want to do PhD in Marketing and to get into a PhD I needed a high Quant score. Last year, when I was doing my MBA, I took an attempt at GRE and scored 160 in Quant which was not enough. This year I had one last opportunity for attempting GRE while being a working professional at the same time. I came across Target Test Prep from Gre Prep Club and read a few testimonials before subscribing to the service. The best thing about TTP is their chapter tests and segregation of problems as per difficulty level. There are so many tests pertaining to each and every chapter, that it makes sure you learn well before moving onto the next chapters. I wrote several custom tests, and it allows you to get a mix of Easy, Medium and Hard questions. The tests were very good in content, helped me secure every loophole. Ask TTP any doubt! Literally any doubt- no matter how silly, they will answer you patiently. My new score in Quant is 166. I thank TTP from the bottom of heart for all the support and brilliant content they have- truly the best guide for quant.