The first practice test I took, before I started classes at Manhattan Review, I got a 430. I went to a good university for undergrad and I've always done pretty well in school. So it wasn't the best feeling when I scored that low, especially since my goal was to get at least a 700.
The classes and the books from Manhattan were priceless. My instructor, Ryan Starr (who teaches in Orange County), was exceptional. He's exceptionally patient and very knowledgeable about the content he teaches and about the course itself. Also, the set of Manhattan books became my bible(s) for a couple months - I lived and breathed those books for a couple months.
Needless to say, I received a 710 on my first try. I wouldn't have been able to get that score with out the help of Manhattan Review.