Hey Andrew!
Your thread has been a great help but I was wondering if you could answer some questions...
How does the screen quality compare with the Nexus 5/SG5?
How does the phone's general speed compare with the Nexus 5/SG5?
How is the speaker (quality/ loudness) in comparison with the Nexus 5/SG5?
How is the build quality in comparison with the Nexus 5/SG5? (I know you said it was fine but a comparison would help

)
How is call quality (do the three microphones help)?
Thanks!
Screen is good, but the auto brightness requires some tweaking (the options are there, thankfully) to get it how I want it. Other than that, it's crisp and has good viewing angles. It's a little "cooler" than the Nexus 5 and maybe a shade darker at full brightness, too.
It's pretty fast, faster than the GS5 getting through the interface and switching apps. But I have to be honest I don't think its as fast as my Nexus 5.
The loudspeaker is pretty good, actually. Louder than the Nexus 5 and GS5. Still tinny and not very useful for much other than calls and maybe podcasts, but it does the job.
I've talked about the build quality a lot already. It's good, no complaints.
Nobody's said anything about the call quality from my end being good or bad. I can say that the speaker is really
really quiet, though. I max out the volume and still have to press the phone hard to my ear to hear — especially when on a loud street, it can almost be impossible to use. Hoping this is a pre-production bug.
I got a few questions.
1.Tell me something about headphones
2.Tell me something about screen,is that good ?
3.Tell me something about stereo speakers
4.Does resitive buttons works good?
5.What kind of plastic is on cover?
6.Tell me about camera,does it make good photos and videos ?
What's your opinion about phone ?
1. They transfer sound into your ears.
2. Covered directly above ^^^
3. There aren't any stereo speakers.
4. Resitive? Capacitive? Yeah, they work, but there's a menu button and so they're pretty useless to me. I turn on the on-screen buttons.
5. It's just a hard plastic with a slight soft touch finish. it feels quite nice.
6. I've talked about the camera and posted a few samples. It's pretty decent with photos, but can be hit-or-miss on whether HDR or standard Auto provides better shots, oddly enough. I'm still testing. Video hasn't been tested yet.
7. My opinion is there are bugs that need fixing and a few things that need to be tweaked before I can perfectly evaluate this phone. On top of that, I don't think I can ever get over how big it is.
Another reviewer said when you record video it is only recording from the LEFT chanel? how did they even leave this error past testing?
As I said I haven't gotten into video recording. That'll be coming. Also, every OnePlus One out there is on pre-release software (and even hardware), so take everything you see with a grain of salt.
Is there an equivalent to Trusted Bluetooth devices on the OnePlus One? Phil says that this feature is a must-have for every smartphone
(according to this article here).
Is wifi calling available on the OnePlus One?
No trusted BT baked in.
No Wifi calling. Remember, this isn't a carrier phone with the customizations needed for that.