everyone who's used a well functioning model F has been inducted into the cult. we protect our own.
that said, F's are a pain in other ways. they're all XT, you have to hack on them to get an ANSI layout, they're huge, heavy, etc... the closest you can get to an F in "more modern" form factors are Ms, and that's not going to change anytime soon (although wcass and the xtant crew are trying quite valiantly)