> they're giving you a remanufactured iPhone using reused internal parts like screws or shielding

And, unless something changed recently, batteries. My iPhone 5 had a faulty charging socket, which got worse. A month after unboxing, it would no longer charge at all, so I handed it in for repair. Got back a unit with half the battery life and a faulty charging socket.

I gave it to a good GSoC student across the world after a second unsuccessful trip to service