Judging from the fact that people on this page are complaining about USB-C cables/adapters not working, and the non-compliant USB-C cable fiasco (e.g. OnePlus), I'd say it isn't that clear. For better or worse, you know exactly what you'll be getting with Lightning. The Lightning connectors are also mechanically very robust.

Of course, the one huge flaw is that now their phones and laptops use different connectors.