still waiting for my 6+. Hope it won't have any issue. If I do, I'd rather go return and buy a new one. Don't like the white box...
At this point the white box replacements are still brand new phones. They haven't had enough time to refurb any yet. Plus, as someone who's had their share of brand new and apple refurbished, my experience is that you're equally as likely to get a bad one brand new out of the box as having an issue with a refurb or white box. Said another way: the apple refurbs are just as good as a brand new, out of the box iphone.