On the whole, I think that Apple has far more hits than misses when it comes to product quality. Sure, like every other company, Apple has things that miss the mark, but there’s one Apple product that’s consistently awful.
Charging cables.
Regular readers will know how much I detest Apple’s cables. iPhone charging cables have been a particular bugbear for me over the years because of how fragile they were, with MacBook charging cables coming in a close second.