The writers opinion i very subjective and generic...
His opinion on Princeton Review and Kaplan is his own ...
for a lot people , preparing from the books nd Cds may not be nougfh and as such none of the resources mentioned have an actual computer adaptive test ...so the gre experince would not be real...
lots of engineers use barrons ,much to their dismay , since memorising wordlists has for long been proved useless
