Honestly, while I'm definitely curious to see it (as is the case with most every fan edit), I have my doubts that it's all that great as it would compare to some of the more accomplished edits out there. After all, this is the only fan edit he's ever made.
This edit has stirred up a lot of discussion, but let's be realistic here and recognize the fact that this discussion is mostly happening between people who have no experience at all with fan edits, and for whom Grace's edit is the first thing of this sort they've ever heard of. There are probably a lot of people out there who think he sort of invented a new thing, here.
Moreover, I don't really think the attention his edit has received would be remotely as widespread were it not for his fame -- his status as an actor, etc., doesn't really give us reason to believe that his edit would be anything special though, you know?
Giving Grace the benefit of the doubt, he did apparently buy an Avid for his edit, not to mention seeking professional tutelage on its use and on editing in general -- so he clearly takes the endeavor seriously. I'd say odds are okay that he made a good (or even great) edit, but I really haven't heard any evidence to suggest that he did any more than re-jigger the prequels, which has been done more than once elsewhere, as we all know.
I suppose in a nutshell I'm just questioning the reasoning behind the fan edit community's interest in this edit, since Grace is a completely unknown entity and ultimately no different from the many untested and unproven editors out there, save for his fame.
/wet blanket