Inability to make a voice call without digital clicking noises and pops is not a little thing, in my opinion. To each his own. I make voice calls roughly 2 hours a day and couldn't stand it.
I made 2 separate genius appointments with my 8+ and both times the guys were cool, but completely shrugged off what I was saying because they couldn't hear it (in the noisy Apple store). The 2nd time I made sure he entered detailed notes into his system about why I was returning the phone and that it isn't 'buyer remorse.' Overall a fine experience but I can't stand the prevailing attitude over there that if a 'genius' can't see / hear it there mustn't be a problem.
I no longer have a horse in this race, got my money back. Very curious nonetheless what Apple will do to resolve this and whether it truly is a software issue vs. hardware issue. Good luck guys and girls.