Have a OnePlus 2 which is cosmetically a solid 9/10 everyday of the week, but known issues with phone are..
*Screen bleed of some type. If you wanted a replacement screen they are dirt cheap from Ali express, between $20-$30 and are pretty easy to replace. This does not effect the usage of the phone.
*Not connecting to mobile network. Maybe a hardware issue with sim card reader or something that is easily fixed with APN settings or flashing a custom ROM, not sure
That is pretty much it, can be used as a wifi only device around the house, no problems with connecting to wifi etc.
Wanting $100 ono, pick up CHCH or can ship tracked overnight with NZ couriers or Courier post