This is great SC supplement to your main SC book - MGMAT SC
or Powerscore SC
. I would not say it is a replacement by any means, but having said that, this book contains most of the tricky concepts of GMAT SC.
I did OG12
and OG Verbal
; each time I would get to the end questions, while trying to maintain the pace, I would loose my accuracy. So I analysed why the heck it's happening - at this point I feel like I have a good grasp on most of the grammar rules - and noticed that it was primary not because I was making any Grammar error, but rather it was because I would miss the meaning of the sentence, making my choice illogical although grammatically correct. Sometime these SCs are tricky and most grammatically correct sentence would be illogical. Anyways, what I mean is: Aristotle SC problem set contains all such tricky answer choices, which trap you while you are trying to maintain the pace by finding an answer quickly, and thus gives you a good practice. I have done like 40 problems so far, and I believe it has helped me a lot. I am hoping to finish it this weekend.