On the good side:
Resilient and lasting well after 3 years of general mistreatment
Good broad brim to shade the eyes.
Good range of sizes.
Not so good:
Bit sweaty when hot.
Rather water repellent which means that trick of soaking the hat in cold water to cool you on really hot days doesn't work so well.
I previously had (and left in a Cape Town taxi) a Peter Storm Cooling Hat with some sort of absorbent gel in the band; this could be made to absorb lots of cold water and, on a hot day, was a godsend, with the evaporation cooling my head. Unfortunately these don't seem to be available any longer.