E-Gmat all the way

So Far it's the best experience for me.

The quant part has the best questions that you will find anywhere. And it's not just the questions themselves, the explanations provided also help you uncover many shortcuts and help strengthen your core concepts. Admittedly, I found them to be a little harder than the GMAT quant questions, but that should help you be better prepared for the final test. And also, the live prep session very really useful cause they emphasize on questions which matters the most.

The focus is on concept :)
Before taking the course my score was Q39-Q40 whereas now I have improved my score to Q48-Q49.

Highly Recommended.