Excellent Course Helped me move from 620 to 750 in about 5 months

I started my GMAT Journey haphazardly sometimes back in August, preparing by myself using several freely available online resources. Unfortunately, that was not quite enough and I was able to score a measly 620. I was particularly weak in Verbal section.
However, I came across TTP through reddit and scored 750 last week:
Pros:
1. Great Course Structure - while I didnt follow their entire study plan, the course structure helped me maintain discipline
2. Verbal - Sentence Correction - Great/Must for non native speaker
3. Quant - Nothing else to do if you do it
4. Verbal - Critical Reasoning and Reading Comprehension - the types of correct and incorrect answers to expect were good

Cons:
1. Too extensive - Not suitable in case you have around 1 month to spare
2. Verbal Questions should be supplemented by OG questions, since they are not extensive like their quant ones

In summary, In case if you have >2 month to prepare, it is THE course to take for GMAT.