I have.
I ran an enduro zero ceramic BB for about 15 months. it shat itself. we see a lot of that in the shop where i work. we have recently found a new supplier of cermic BBs who make them for us. so far there have been no issues whatsoever, and they come in pretty colours.
they do however make a noticable difference, and i would recomend them. what groupo do you run?
if you run sram you're in luck, the sram ceramic bbs are awesome and weve yet to see one fail.
IT would be spam if i mentioned my shop name, but yeah.