TargetTestPrep review

Strengths:

Ample quant practice questions

Very clear, concise and relevant verbal reasoning reading material

Error tracking and OnTarget practice and analytics

Flexible study plans suited to your needs

Would make the product better:

Need more verbal reasoning practice questions

I took the GMAT flexible preparation plan provided by TTP on a monthly subscription basis for my GMAT preparation (at the Expert+ level). Used the accelerated calendar study plan and then switched to the mission plan about one and half months before my GMAT exam.

As for quant, TTP provides ample questions for practice in the form of timed tests and lots of study material to learn the different topics from. As for verbal reasoning, the study material is very clear, concise and relevant wrt the GMAT syllabus. It provides a very lucid understanding of different topics with its crisp short paragraphs and highlighted "Must Know"s.

I personally loved the flexibility of the 2 types of study plans and the fact that one can switch between the two at any point in time. For a working individual with very little time to think about the priority order of lessons, the calendar plan is perfect as it takes away the headache of carefully planning what lessons to study first. Then as you near the end of the preparation, assuming that one would devote more time to studying, one can switch to the mission plan which is designed to get the most learning in few sittings.

TTP also has a really good error tracking system which accurately provides you with your weak topics and strong topics; and using this in combination with the OnTarget practice system; accelerates learning by a big margin.

Finally reached my target GMAT score of 760 (q51 v41) from 700 (q50 v34) on my first official practice test.