No experience here but I know quite a few that have done it. Most said buy a good recliner since you won't be in bed for a while and when you start PT, stay on the drugs. It takes 6-9 months to get back to a firemans job and some guys don't make it back. I'm not sure 80% will do it. One of my friends couldn't make it back. He's fine other than he really can't do much overhead work with his left arm.
Most of them get their shoulders done here
https://kerlanjobe.org/ by this doc.
https://kerlanjobe.org/physicians/daniel-kharrazi-md/
