I had one done six years ago. I was going through a piercing stage and my roommates and I went and got ours done. I had to go first because I knew if I didn't just get it done and over with and saw my roommates reactions to the pain I'd freak out and back out.

And it actually didn't hurt all that much. My bellybutton piercing hurt much worse. I thought that I wouldn't want to wear a bra right afterward but realized that was a big mistake right away the less movement and contact against the piercing the better. Seat belts are the devil.

The healing process was a breeze. I woke up the next morning expecting to be in some serious pain and dreading having to move the ring thinking it would be the worst pain of my life...it wasn't at all. It healed really quickly and almost everyday I'd soak it in a shot glass with seal salts to help the healing process.

The sensitivity was increased 100% initially, and later went back to normal...or I should say maybe it's a little more sensitive then my non-pierced nipple. And I do have a little bit of scar tissue but nothing that's too obvious or bothersome.

I love it and would do it again in a heartbeat. You can see it through certain shirts, but I generally wear a padded bra so it's not really an issue.