It just works*.
*=Except for when it doesn't.
Seriously, what Apple phone generation hasn't had a "gate" involving design or quality control issues?
If it happens once, fine, it's a fluke. But if it happens every single generation, then maybe you should fire your engineers and start over from scratch or something.
Good thing customers are paying well over double the cost of an equivalent device (and losing out on all sorts of innovative technology that has been used in other manufacturers for six months, a year, and sometimes even more) for a product that is built so well. I'd hate to think that Apple customers might have spent all of that extra money for no good reason or something.