E-Gmat honestly critical reviews from PhD candidate

I used Egmat and Gmat Club test in 2017 to prepare for my Gmat test. At first, because of many positive reviews from other students, I decided to buy 2 accounts for me and my wife. We both apply for PhD program in Business School. We strongly believed in EGMAT methodology and study hard following the courses instruction. However, Egmat is only good for reviewing the SC concepts. The lecture is very long and tedious. Most of the concept in Emat is covered in Manhattan SC.
The practice question in Egmat is not as good as Official questions from GMAC. Many questions collected from GMAT club and other sources. Many SC question is modified from OG questions. Quatitative question explanation is too long, the solution method is not good for 2 minutes in GMAT.
If you want moderate course for the beginner, Egmat can be an ok one. But If you want higher score than 650, we need to study nearly all OG questions. Please do not believe the claim that you can get 700+ just if you Egmat materials alone. It is misleadingly advertised.