710 on first attempt

For me, GMAT preparation started with me dabbling in different available study materials, instead of a systematic approach. Although I did do my research before purchasing e-GMAT's online course, my casual approach in preparations would continue for some more time. During this period, however, my understanding of Sentence Correction improved gradually.
When I started out, Sentence Correction seemed like the only difficult segment for me. But thanks to the detailed study materials and ample test materials available on the e-GMAT platform, I ended up scoring a 99th percentile in my first GMAT attempt. I faltered on things that I always thought I had covered and hence did not put in the requisite effort. The only reason I could score a 99th percentile on the section that should have been my biggest weakness is that I spent almost 70% of my preparation time on this section (both concepts and short tests in Scholaranium). So, if you are willing to put in the necessary effort, e-GMAT will provide you the guidance- things like Meaning-based approach and Strategic pausing proving most helpful for me

The Sigma-X mocks are also a pretty accurate representation of the actual test.

Talking of guidance, Dhananjay (aka DJ) from the e-GMAT team deserves a special mention as well- he helped me streamline my preparation in the week prior to the test and has continued to support with a detailed analysis of my test performance.