It’s the bike I use around Woburn so no long-duration braking. However, due to the sandy nature of the trails, normal pads can last less than a day whereas ceramic ones last at least a year.
The coating itself is now about 75% gone. The ceramic pads don’t work well on an aluminum surface. A previous rim worn to this level is now doing excellent service on a disc braked bike !
My experience of the coatings is that the Bonty was by far the best, Mavic’s OK, DT Swiss not so good (I trashed the rear Bonty in Chamonix and have been through a couple of Mavics and one DT on the rear since).
Many thanks for the link, amedias, I’ll be on to that (why am I so rubbish at finding this stuff ?) – despite what I said above, DT Swiss ceramic still way better than straight aluminum.