There's a Fantastic Four set coming out as well, I think either this month or next month. I have the Spider-Man one. The scanning is pretty well done. It's all in PDF. Obviously the oldest issues are not as crisp because they're scanned from someone's collection (the set says who but I don't recall)... newest stuff is of course great-looking. I imagine the FF set will be very similar.
I have to re-read it like the other Final Crisis books, but again this thing makes little or no sense. I really hate Grant Morrison and I'm glad to hear DC is trying to reign him in after his debacle and Batman: RIP.