Me too, open cholecystectomy, not keyhole, due to complications with pancreatitis/pancreatic pseudocyst which had to be cleared out at the same time as the gall-bladder was removed.

Pain control was very good (I was in Queen's Medical Centre, Nottingham, UK), initially intravenously by one of those morphine-administering machines where you press a button and get a shot when it starts to hurt, then later by oral medication.

Takes a bit of getting over, but the results are worth it.