I have a 2016 13" nTB that I've been using daily since I bought it back in early Dec 2016. The sharp edges are still pristine, but there is some wear around one of the USB-C ports. You can clearly tell which port I use more often, and it probably doesn't help that I sometimes plug it in in the dark. I'd imagine if I didn't do that, it wouldn't be as noticeable.
With that being said, it's much less noticeable in person vs. in the photos. You really have to look for it to even see it really.