They have really decided not to add anything valuable this time. I think they should have just skipped printing these new guides, and perhaps just offered the online access to the 900 questions in the official guide.
I personally think they need to add a bunch of hard questions and also add easy and medium questions, but from recent administrations. It is not that difficult, especially when we know that a whole bunch of official GMAT questions from recent years are floating in the internet, including on this forum, people just don't know which ones they are. I am complaining a bit here, but I also commend GMAC for releasing GMATPrep Question Pack 1 and Exam Pack 1, which definitely are closer to the real exam. This takes the pressure away from students looking for illegal questions. In fact, if we look at LSAT, they have done a great job by releasing tons of tests, and the market for poor quality tests written by test prep companies is non-existent. I personally think GMAC needs to go in the same direction.
As for the difficulty level of the OG questions, I do want to point out that the percentile ratings on GMATClub is highly skewed, where even difficult questions show up as medium. The students on this forum who are attempting these questions are self-selected, typically motivated and putting a lot of effort in their studies. I do agree that the overall level of OG questions is not that difficult, but it is not as bad as the GMATClub analysis shows. That is just my opinion.
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