For what it's worth, I haven't had any of the problems others have reported with iOS 6 maps.  I've asked for directions several times now and have had good results.  In fact, in one case - the directions to my mom's house - the directions were the first to use a backroad short-cut.  In contrast, my other mapping app, Navigon, has never offered that route before.  

AuthorDavid Rabenau