I wore mine every day of my Henro (10 weeks for slow slow me!). It shed water, didn't seem to get dirty (I got the khaki one), washed and dried overnight (I washed it every week or so). Super comfortable, I wore wool leggings or a light merino skirt under it on cold days. It's full enough to change clothes under, and makes it easy to take a quick private trailside pee. It has side snaps so you can hike it up when you're ascending or descending very steep slopes.
Best of all, it has GINORMOUS pockets! I kept my phone and wallet in one and the Shikoku 88 Route Guide in the other (yes, the book fit in the pocket!), and my passport and larger bills in the hidden zip pocket.