USB-C is great. There is no down-side.
But, seriously folks, I have to say given that there should be a 50/50 chance of getting a non-USB-C cable in correctly on the first try, my success rate seems to be about 1/3. Good riddance to non-USB-C cables and proprietary connectors. I just got an otherwise great headlight (Cyglolite), but it has a USB-mini port. Those open up a whole new realm of horror.