Their utilities (Multibeast, Unibeast, Kextbeast...) are well-though and easy to use, but it worth noting that Tonymacx86 doesn't have any plans to open source them -- you have to trust him (no one seems to know his real name, mostly for legal reasons related to Apple I think) to execute binaries with root rights on your fresh OS, or go the Vanilla (and harder) way.