Egmat review

I have purchased egmat verbal online course for which i got SC,CR,RC videos and verbal scholaranium GOLD with 500 question.
I heard that sentence correction is only worthy out of this entire course, even i felt the same even after going through the course.
Sentence correction is a bit helpful in knowing all the grammar rules but in reading comprehension i found the process a bit hectic and time taking which is not practically possible at the time of exam, also i didnt find any info which can be helpful in improving my accuracy in reading comprehension. in case of CR pre-thinking is one think that is helpful, i expected much more from this course but my application part is lacking where the course would have been helpful but it didn't.