Thumbs-up for e-GMAT.

Strengths:

The elaborate content.
User-friendly software.
User forum in each topic.

Initially, I tried to prepare by myself, using the official guides and a few popular study guides. But, my preparation was all over the place, and didn't see any improvement in my performance. After a friend's suggestion, I tried the e-GMAT course. The content was organized very well and the exercises before and after each topic were very helpful in assessing whether I understood the topic. The forums cleared most of the doubts and the team was very responsive to emails. The Sigma X mocks helped identify the gaps in my preparation as they come with a lot of analytical data. My mentor Rida was extremely helpful in fine-tuning my study plan and building my confidence. e-GMAT has everything that one would need to excel in GMAT and I confidently recommend it.