Guides are now getting released earlier and earlier and getting crappier and crappier. Strategy game and other competitive game guides are never good since they contain strategies that are decent at the start but quickly become obsolete. Guides for RPGs and games like that are more useful though recent ones contain too many errors and omissions. I know for instance that the Ninja Gaiden guide only had around 47 out of the 50 scarabs listed.

I think that the RTW guide will have lots of errors and strategies that will be obsolete in less than a week.