Yes I've only used the one that came with my Hakko soldering iron, and I just got a replacement from Hakko since my old one is getting pretty full of solder bits.
The tip on my soldering iron is perfectly fine though.
The tip on my soldering iron is perfectly fine though.
AFAICT, it works well with all soldering irons. I certainly haven't noticed any detriment to my soldering irons over the >decade I've used it. It really seems to be fine and it sure is simple to use.
(I really have needed to buy new brass wool for a few years now, though. It works, but it is not nearly as slick-and-clean to use as it once was. Sourcing this from Hakko directly seems like a safe route and it's probably cheap-enough -- maybe I'll buy a few refills and have some for the rest of my life.)