Not to beat a dead horse, but since you asked.....YES! We were on the Carib Dancer (most awful liveaboard I have been on). There was not only no nitrox, but the company mislead guests by stating on their website that it was available. We were on the ninth trip after they moved the boat there and it hadn't been functional from day one. I woldn't say it was a remote location: NASSAU. We were offered free nitrox on our next trip. But that didn't even come close to attracting us to book their boats again after a lack of edible food and plumbing.