I just finished one CAT. Maths is more complicate than GMATPrep, but verbal is not so much different. My score for Q is 61% V is 91% total 660. Normally, my quant scores in GMATPrep are 48-50. When I solved the quant problems, I did well at first (from my result sheet, I saw that I got 700-800 level questions). Then, I felt that the questions got more and more complicate to the point that it took me more than 2 minutes to solve each problem. Finally, I ran out of time and just filled in answers more than last 10 questions (which now are 500-600 level questions). My verbal scores from GMATPrep are around 42-45. Anyway, I think this CAT test is better than the former version since it is adaptive.
I want to tell people who already had access to the practice center before this CAT test came out that you should try to log in and see if you can do the test, because I didn't buy it. I have had access to practice center because I bought the online test (3 tests, not adaptive) first, then bought a SC book. Yesterday, I logged in and saw that I also had additional access to the new CAT test. So, I think if you already had access, the you don't have to buy the new CAT.
Hey, do you think that maths in this CAT is harder than GMATPrep?