I quit smoking almost five years ago, because Mark's health wasn't good and wasn't going to get a lot better. One of us had to make some kind of effort to stay healthy, and it was obviously going to have to be me. It was horribly hard, I only managed to do it by telling myself that I never wanted to have to go through that torment again. I recently walked through a mother's worst nightmare, and never even thought about a cigarette until it was over (when I realized I hadn't thought about one), so I guess I am truly "cured".
That being said, the only cruise that I have noticed cigarette smoke was on Voyager, the British Isles cruise. I would walk down the hallway toward the laundry room, and could smell it but couldn't tell which suite it was coming from. I'm sure Regent has a reason for doing this now, I hope they manage to get through the fallout.