You won't need techniques from this book on the SAT Subject Test in Math Level 1.
Questions are designed to be solved easily "by hand", and if you are lucky enough to find two where you could graph, adjusting the window and manipulating "Calc zero" will take you 5 times longer.

Author's claim in his other book and on his site of squeezing
40(?) hours of precalculus into 4 hours using this book is preposterous.
It's obvious that if you want a decent score, you need not even bother trying to take Math Level 2 without knowing the precalc fundamentals. There are 3-5 questions on Math 2 where graphing might help, so skim through this book.
On the other hand, if you mastered TI-89, you will very likely do without graphing altogether, crunching equations in a sinch.

Now, on a different note. I am not the first one who noticed that 99% of Mr.Meylani books' raving reviewers did not write any others (check their "See all my other reviews" links). Enlisting one or a bunch of friends to register on Amazon.com with made up names and locations seems like not an improbable marketing ploy to me.

My private tutor recommended me this book and the first thing we did when we started our 2C prep was covering the methods in this book and going over every problem. In the beginning I had no idea on trigonometry, logarithms, etc. In the end I could solve all questions on them. The author uses a specific approach that can be easily learnt. I took the 2C and I was overwhelmed to see that I solved most of the questions in the 2C test with my graphing calculator. 43 questions is enough to score 800 in 2C; I guess I did half of all questions with the TI. Moreover I was fast; I really did not have to remember all the nasty rules of logarithms to solve some of the questions. I do thank the author of this book as he/she has done a wonderful job.

I recently discovered that half of the 2C test is based on the graphing calculator skills. In that aspect this book is perfect. If you are in search of a review book, you may use Princeton Review's or Barrons. However they do NOT teach the calculator skills that you need. Even if you review every topic in detail, it is impossible to solve some of the questions in 2C without knowing certain calculator techniques. This book teaches them and they absolutely work!

I had taken the 2C test in January for the first time when I realized that I should have learnt the calculator techniques better. Then I saw Barron's 2C book; it had a chapter devoted to the TI calculator. I had great expectations that eventually turned into a complete frustration. Then a friend of mine, who is an expert TI user, recommended me this book. which teaches the TI 83 calculator in and out in a step by step fashion. Thanks to this book, I may even score an 800 on the 2C test this time.

I used three books for my SAT Math IIC prep:
1 - Princeton Review's book for the review.
2 - SAT II Math with TI of Meylani for the calculator techniques
and
3 - 15 Realistic Tests of Meylani for the sample tests.
I took the exam last Saturday and I am pretty confident that I will score above 750.