It's mainly in the videos. But it definitely crops up. I'd upload a video clip, but I can't be bothered.
I don't believe the microphone is designed that way. But the fact it's fucked on mine doesn't inspire much confidence in Sony's mobile phones.
Yes, because you've received a faulty one means of course that it is a general quality problem with all their phones right? Really now...
And I don't understand your criticism about too many ports. What clutter are you talking about?
Why does it matter if the USB has a single port or not?
I have a Z1 and not a Z2, but what bloat are you talking about? Because it has an animation when it boots? Bloat or not, my Z1 is silky smooth in everything and I can imagine the Z2 is even more so.
Regarding camerea and microphone: yeah, obviously you've been unlucky and received a faulty one and need to replace it.