I have found the verbal sections inordinately difficult, even compared with the EK 101 verbal bokk: anyone take minimcat #13 w/ the passage about the Quran, WTF?, that was ridiculous. Otherwise, I think the science sections are pretty comparable...
as to scaled scores, it would be impossible to standardize these tests: 1) b/c they are such a small sample of questions and 2) b/c this book is brand new, and likely has not been tested by EK on many people, so no way of scaling scores; they will, likely, offer a scale w/ later editions of the book, but how much would they really correspond to actual standardized MCAT scores anyway?
If you want to see where you stand in terms of scaled score, AAMC P-MCAT's are the only way to go