I've never tasted my own, partly because I lose interest in all things sexual immediately after I've cum, and partly because it just doesn't appeal.
I've sucked cock about 12 times in total but only got a tiny bit of cum on my lips for the first time during number 12 back in June this year. On all other occasions I've made sure I pulled away before they came. It tasted salty but I don't think I'd want to try it again.
I would definitely suck cock again though, if only I could find one to suck. Any takers out there?