5V/1A is great for overnight charging. I've noticed my phone battery lasts so much longer the next day.
The lightning cables tend to hold up a little better but the jacketing still seems extra thin and flimsy. I've actually only owned 2 iPhones (6s and SE2) and one iPad because I'm not someone who cares about having (or spending the money) on a crazy fancy phone but I do prefer iOS. I've bought a few nice third-party MFI-certified cables after the one that came with my 6s disintegrated and haven't bought a new one since. They were a bit expensive, but they're in as good of shape as when I bought them and well worth the upfront cost.
As for Apple's recent cables, the rubber has become discoloured on my very-well-used 2017 MacBook Pro USB-C charging cable, but it's still completely intact with no signs of fraying or failing. My ~2.5 year old USB-C to lightning cable seems to be holding up well so far too.
I’ve been using them for a few years and they’re virtually indestructible. They have a thin wire braided into the plastic overmold so they’re extremely tough, and the strain relief on the cable ends is about as good as it gets.
Never seen a detailed teardown of one though. What does everyone think about them?